MLB's 30 general managers ... who are they?

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Postscript: Where playing experience is listed as "None," that describes no experience above high school or Little League.

Jump to National League GMs

AMERICAN LEAGUE

Baltimore Orioles: Dan Duquette

-- Official title: Executive vice president, baseball operations

-- Age: 57 (born: May 26, 1958)

-- Date of hire: Nov. 6, 2011

-- College/education: Amherst College

-- Previous job: GM, Boston Red Sox (through 2002); in the intervening years he operated a youth sports academy and helped found the Israel Baseball League.

-- GMs worked under: Harry Dalton, Bill Stoneman, Dave Dombrowski

-- Front-office experience (in years): 25

-- Playing experience: College (catcher)

-- Notable achievement: Bringing free agent Manny Ramirez to the Red Sox on an eight-year, $160 million deal before the 2001 season.

-- Does the buck stop with him? Yes

Boston Red Sox: Mike Hazen

-- Official title: Senior VP and GM

-- Age: 39 (born: Jan. 7, 1976)

-- Date of hire: Sept. 24, 2015

-- College/education: Princeton

-- Previous job: Assistant GM of the Red Sox (started in 2012)

-- GMs worked under: Mark Shapiro, Theo Epstein, Ben Cherington, Dave Dombrowski

-- Front-office experience (in years): 12

-- Playing experience: Minor leagues (outfielder), 1998 31st-round pick (San Diego Padres), two seasons (.252/.382/.375), reached Low-A Midwest League.

-- Notable achievement: Turned a stint helping Peter Gammons scout the Cape Cod League into an internship with the Cleveland Indians to get his first front-office job.

-- Does the buck stop with him? Probably not, since Dombrowski is the club's president of baseball operations. Hazen's credited for being frank, and he was one of only two men interviewed for the job.

Chicago White Sox: Rick Hahn

-- Official title: Senior VP and GM

-- Age: 44 (born: March 20, 1971)

-- Date of hire: Oct. 26, 2012

-- College/education: Michigan, Harvard (Law School), Northwestern (MBA, Kellogg School of Business)

-- Previous job: VP/assistant GM of the White Sox; he joined the organization on Nov. 28, 2000, to add negotiation chops to the front office after having worked for agent Jeff Moorad's firm.

-- GMs worked under: Kenny Williams

-- Front-office experience (in years): 15

-- Playing experience: None

-- Notable achievements: Working out serial multiyear, long-term deals with stars Mark Buehrle and Paul Konerko.

-- Does the buck stop with him? Yes, although Williams is still around as Executive VP.

Cleveland Indians: Mike Chernoff

-- Official title: GM

-- Age: 34 (born: June 2, 1981)

-- Date of hire: Oct. 6, 2015

-- College/education: Princeton

-- Previous job: VP, baseball operations/assistant GM

-- GMs worked under: Mark Shapiro, Chris Antonetti

-- Front-office experience (in years): 13

-- Playing experience: College (shortstop)

-- Notable achievement: Winning the Indians' first salary arbitration hearing in more than two decades in 2014, going up against reliever Vinnie Pestano's representatives.

-- Does the buck stop with him? Not exactly; his relationship with Antonetti (promoted to President of Baseball Operations on the same day Chernoff was promoted to GM) should be much like Antonetti's was with Shapiro.

Detroit Tigers: Al Avila

-- Official title: Executive VP, baseball operations

-- Age: 57 (born: Aug. 2, 1958)

-- Date of hire: Aug. 4, 2015

-- College/education: St. Thomas University

-- Previous job: Tigers assistant GM, going back to April 15, 2002

-- GMs worked under: Dave Dombrowski, Dave Littlefield (for less than four months in 2002, the only break in his time with Dombrowski going back to 1992).

-- Front-office experience (in years): 24

-- Playing experience: Minors (catcher), one season in Rookie league in 1978 with the Los Angeles Dodgers, the organization his father worked in as a scout and executive to this day; Avila moved over to working his way up through minor league front-office work and later scouting.

-- Notable achievement: With the then Florida Marlins under Dombrowski, Avila helped sign a 16-year-old Miguel Cabrera as an amateur prospect.

-- Does the buck stop with him? Yes.

Houston Astros: Jeff Luhnow

-- Official title: GM

-- Age: 49 (born: June 8, 1966)

-- Date of hire: Dec. 8, 2011

-- College/education: Penn, Northwestern (MBA, Kellogg School of Business)

-- Previous job: VP for scouting and development, St. Louis Cardinals

-- GMs worked under: Walt Jocketty, John Mozeliak

-- Front-office experience (in years): 13; Luhnow had a successful career as a corporate executive and global consultant before joining the Cardinals in 2003.

-- Playing experience: High school

-- Notable achievements: Getting the Astros from industry basket case to the postseason in only four seasons but equally impressive was his success drafting talent -- especially in the later rounds -- to keep the Cardinals' system fully loaded.

-- Does the buck stop with him? Yes.

Kansas City Royals: Dayton Moore

-- Official title: Senior VP, baseball operations

-- Age: 48 (born: Feb. 17, 1967)

-- Date of hire: May 31, 2006

-- College/education: George Mason University

-- Previous job: Assistant GM, Atlanta Braves

-- GMs worked under: John Schuerholz

-- Front-office experience (in years): 22

-- Playing experience: College (shortstop)

-- Notable achievements: Getting the last laugh over his many critics of "the process" with his team's World Series win last month; the December 2010 trade that sent ace Zack Greinke (plus infielder Yuniesky Betancourt and cash) to the Milwaukee Brewers for center fielder Lorenzo Cain and shortstop Alcides Escobar (plus pitchers Jake Odorizzi and Jeremy Jeffress) was key to making that happen.

-- Does the buck stop with him? Yes.

Los Angeles Angels: Billy Eppler

-- Official title: GM

-- Age: 40 (born: Sept. 16, 1975)

-- Date of hire: Oct. 5, 2015

-- College/education: UConn

-- Previous job: Assistant GM, New York Yankees

-- GMs worked under: Brian Cashman, Dan O'Dowd

-- Front-office experience (in years): 16

-- Playing experience: College (pitcher)

-- Notable achievement: Starting from a scouting background in the Colorado Rockies' system but adding analytical chops, Eppler helped Cashman overhaul the Yankees' pro scouting program after 2005, helping to produce their 2009 title.

-- Does the buck stop with him? TBD. You might have to ask owner Arte Moreno, but Eppler and manager Mike Scioscia seem to have already clicked if public comments are any indication, which is important after last summer's meltdown between Scioscia and former GM Jerry Dipoto.

Minnesota Twins: Terry Ryan

-- Official title: Executive VP

-- Age: 62 (born: Oct. 26, 1953)

-- Date of hire: Nov. 7, 2011 in his second term as Twins GM; first stint ran from Sept. 13, 1994-Sept. 13, 2007.

-- College/education: University of Wisconsin-Madison

-- Previous job: Senior advisor to the GM between his own GM stints; before his first term he was director of scouting.

-- GMs worked under: Andy MacPhail, Frank Cashen

-- Front-office experience (in years): 36

-- Playing experience: Minors (relief pitcher); 1972 35th-round pick (Twins), four seasons (14-3, 3.07 ERA), reached Double-A Southern League.

-- Notable achievement: Ryan wasn't afraid of dealing major players in his first term; his best trade was getting pitchers Francisco Liriano, Joe Nathan and Boof Bonser from the San Francisco Giants for catcher A.J. Pierzynski after the 2003 season.

-- Does the buck stop with him? Yes.

New York Yankees: Brian Cashman

-- Official title: Senior VP and GM

-- Age: 48 (born: July 3, 1967)

-- Date of hire: Feb. 3, 1998

-- College/education: Catholic University

-- Previous job: Assistant GM, Yankees

-- GMs worked under: Gene Michael, Bob Watson, Harding Peterson, Bob Quinn Sr., Lou Piniella, Woody Woodward, Clyde King

-- Front-office experience (in years): 27

-- Playing experience: College (second base)

-- Notable achievement: Using the Yankees' financial muscle before the 2009 season to sign CC Sabathia, A.J. Burnett and Mark Teixeira, and to trade for Nick Swisher.

-- Does the buck stop with him? Most of the time, but the decision to sign closer Rafael Soriano in 2011 came from team president Randy Levine and Hal Steinbrenner.

Oakland Athletics: David Forst

-- Official title: Executive VP and GM

-- Age: 39 (born: May 18, 1976)

-- Date of hire: Oct. 5, 2015

-- College/education: Harvard

-- Previous job: Assistant GM, Athletics

-- GMs worked under: Billy Beane

-- Front-office experience (in years): 16

-- Playing experience: College (shortstop), independent Frontier League 1998-1999 (infielder, .288/.357/.352).

-- Notable achievement: After serving as Beane's assistant GM for 12 seasons, working on trades, player evaluations and contract negotiations, it's hard to separate the two men's accomplishments.

-- Does the buck stop with him? It remains to be seen; this could be job-title inflation for the A's duo, but Beane isn't just the team president, he also has an ownership stake in the team. They're sure to be working together for a long time to come.

Seattle Mariners: Jerry Dipoto

-- Official title: Executive VP, baseball operations/GM

-- Age: 47 (born: May 24, 1968)

-- Date of hire: Sept. 28, 2015

-- College/education: Virginia Commonwealth University

-- Previous job: General manager, Los Angeles Angels

-- GMs worked under: Theo Epstein, Dan O'Dowd, Josh Byrnes, Kevin Towers, Ben Cherington

-- Front-office experience (in years): 13

-- Playing experience: Majors (relief pitcher); 1989 third-round pick (Indians), eight seasons (27-24, 49 saves, 4.05 ERA).

-- Notable achievement: With the Angels, you could never be sure whether the bigger deals, like signing first baseman Albert Pujols to a 10-year, $254 million deal before the 2012 season, were really "his" moves or owner Arte Moreno's. He has moved quickly in his first months with the Mariners, signing former Angels catcher Chris Iannetta, trading for Orioles backstop Steve Clevenger and Texas Rangers center fielder Leonys Martin, and getting reliever Joaquin Benoit from the San Diego Padres.

-- Does the buck stop with him? After his ugly exit from the Angels' front office last summer after a power struggle with manager Mike Scioscia, Dipoto made a good impression on the M's by telling them what happened; you should expect the answer to be 'yes.'

Tampa Bay Rays: Matthew Silverman

-- Official title: President, baseball operations

-- Age: 39 (born: May 20, 1976)

-- Date of hire: Oct. 14, 2014

-- College/education: Harvard

-- Previous job: Team president, Rays

-- GMs worked with: Andrew Friedman

-- Front-office experience (in years): 10, but he started at the top; Silverman came aboard as team president from a career in banking at Goldman Sachs after helping Stuart Sternberg buy the team.

-- Playing experience: None.

-- Notable achievement: Last winter's three-way trade involving the Washington Nationals that sent Wil Myers to the Padres and brought in catcher Rene Rivera and right fielder Steven Souza and a package of prospects was nothing if not creative; getting shortstop prospect Daniel Robertson from the A's in the Ben Zobrist deal will soon pay big-league dividends.

-- Does the buck stop with him? Yes.

Texas Rangers: Jon Daniels

-- Official title: President, baseball operations/GM

-- Age: 38 (born: Aug. 24, 1977)

-- Date of hire: Oct. 4, 2005

-- College/education: Cornell

-- Previous job: Assistant GM, Rangers

-- GMs worked under: John Hart, Dan O'Dowd

-- Front-office experience (in years): 15

-- Playing experience: None.

-- Notable achievements: Trading Edinson Volquez for Josh Hamilton after the 2007 season was seen as a huge risk given Hamilton's past problems with substance abuse, but it provided the Rangers with a premium bat for five seasons. Getting Nelson Cruz as the kicker in the trade for stretch addition Carlos Lee in 2006 similarly paid off huge long-term benefits at the plate. And with hits like signing Yu Darvish before 2012 or trading for Cole Hamels last summer, Daniels is still dealing.

-- Does the buck stop with him? Yes, especially since Nolan Ryan left his role as team president and CEO after 2013.

Toronto Blue Jays: Ross Atkins

-- Official title: Executive VP of baseball operations/GM

-- Age: 42

-- Date of hire: Dec. 3, 2015

-- College/education: Wake Forrest

-- Previous job: Vice president of player development, Indians

-- GMs worked under: Mark Shapiro, Chris Antonetti

-- Front-office experience (in years): 15

-- Playing experience: Minor leagues (pitcher), 38th-round draft pick in 1995 (Indians), five seasons, reached Double-A Eastern League League (37-32, 4.66 ERA).

-- Notable achievement: He made a quick transition to scouting, and has a background of working with an Indians organization that has done a remarkable job of integrating advanced performance analysis with organizational management.

-- Does the buck stop with him? No. Atkins and Shapiro worked together in Cleveland, and it already seems clear that it'll be Shapiro who will call the shots.

Back to American League GMs

NATIONAL LEAGUE

Arizona Diamondbacks: Dave Stewart

-- Official title: Senior VP and GM

-- Age: 58 (born: Feb. 19, 1957)

-- Date of hire: Sept. 25, 2014

-- College/education: On the diamond.

-- Previous job: Player agent and founder of Sports Management Partners

-- GMs worked under: Sandy Alderson, Kevin Towers, Gord Ash, Dean Taylor

-- Front-office experience (in years): Eight (counting his time as a coach and pitching coach/assistant GM with the Blue Jays).

-- Playing experience: Major leagues (pitcher), 1975 16th-round pick (Dodgers), 16 seasons (168-129, 3.95 ERA), earned World Series rings with the 1981 Dodgers, '89 Athletics and '93 Blue Jays.

-- Notable achievements: As an executive, you can point to his signing Cuba's Yasmany Tomas to a six-year, $68.5 million deal; Stewart has been a top-tier pitcher, coach and agent (he negotiated Matt Kemp's eight-year, $160 million deal). Will he ultimately be as successful as a front-office executive?

-- Does the buck stop with him? Chief Baseball Officer and famed micro-manager Tony La Russa is his boss (as he was when Stewart pitched and La Russa managed for the A's in the '80s), so it seems like more of a comfortable management tandem.

Atlanta Braves: John Coppolella

-- Official title: GM

-- Age: 36 (born: July 28, 1979)

-- Date of hire: October 1, 2015

-- College/education: Notre Dame

-- Previous job: Assistant GM, Braves

-- GMs worked under: Frank Wren, John Schuerholz, John Hart, Brian Cashman

-- Front-office experience (in years): 16

-- Playing experience: None.

-- Notable achievement: For his blend of old- and new-school approaches using both scouting and sabermetrics, "Coppy" was named one of the top 10 GM prospects in June 2014 by Baseball Prospectus; four others named there have subsequently become GMs (Al Avila, A.J. Preller, David Forst and Mike Hazen).

-- Does the buck stop with him? No, or not yet. Elder statesmen Hart (as president of baseball operations) and Schuerholz (as team president) still play significant roles.

Chicago Cubs: Jed Hoyer

-- Official title: Executive VP and GM

-- Age: 41 (born: Dec. 7, 1973)

-- Date of hire: Oct. 26, 2011

-- College/education: Wesleyan

-- Previous job: Executive vice president and GM, Padres

-- GMs worked under: Theo Epstein, Mike Port

-- Front-office experience (in years): 14

-- Playing experience: College (shortstop and closer)

-- Notable achievement: Getting Anthony Rizzo away from Epstein as Padres GM in a December 2010 trade with the Red Sox in a package that sent Adrian Gonzalez to Boston. Less than three months after Hoyer moved to the Cubs, he and Epstein acquired Rizzo from the Padres for Andrew Cashner and minor leaguer Kyung-Min Na.

-- Does the buck stop with him? No, but Epstein, Hoyer, assistant GM Shiraz Rehman and player development honcho Jason McLeod are an exceptionally smart management team in an era of expanding management teams.

Cincinnati Reds: Dick Williams

-- Official title: Senior VP and GM<

-- Age: 44

-- Date of hire: Nov. 4, 2015

-- College/education: University of Virginia

-- Previous job: Assistant GM and vice president of baseball operations, Reds

-- GMs worked under: Brian Cashman, Wayne Krivsky, Walt Jocketty

-- Front-office experience (in years): 10

-- Playing experience: None.

-- Notable achievement: Williams started out in investment banking and worked on George W. Bush's re-election campaign in 2003-04 before joining the Reds in 2006 when Bob Castellini purchased the team. His father and uncle are minority owners of the Reds. He talked up his commitment to analytics when he was promoted last month.

-- Does the buck stop with him? Not yet -- Jocketty is still in the picture as the Reds' president of baseball operations for a year, and former GMs Kevin Towers and Cam Bonifay are in advisory roles -- but Williams was and is the long-term internal candidate to fully take over.

Colorado Rockies: Jeff Bridich

-- Official title: VP and GM<

-- Age: 38 (born: Sept. 10, 1977)

-- Date of hire: Oct. 8, 2014

-- College/education: Harvard

-- Previous job: Senior director of player development, Rockies

-- GMs worked under: Dan O'Dowd

-- Front-office experience (in years): 12 years

-- Playing experience: College (catcher/outfielder)

-- Notable achievement: Trading Troy Tulowitzki at the deadline in his first year as GM is as big as it gets; whether the arms received (Jeff Hoffman, Jesus Tinoco and Miguel Castro) beyond getting shortstop Jose Reyes to replace Tulo flourish remains to be seen.

-- Does the buck stop with him? Yes. The Rockies' previously muddled leadership picture seems to be a thing of the past.

Los Angeles Dodgers: Farhan Zaidi

-- Official title: GM

-- Age: 38 (born: Nov. 11, 1977)

-- Date of hire: Nov. 6, 2014

-- College/education: MIT, with a doctorate in economics from UC Berkeley.

-- Previous job: Director of baseball operations, Athletics

-- GMs worked under: Billy Beane

-- Front-office experience (in years): 11

-- Playing experience: None.

-- Notable achievement: Beane credits Zaidi for playing a key role in the A's signing Yoenis Cespedes when the Cuban slugger hit the market.

-- Does the buck stop with him? No, Andrew Friedman is the team's president of baseball operations, but Zaidi is a key decision-maker within the Dodgers' think-tank approach to organizational management.

Miami Marlins: Michael Hill

-- Official title: President of baseball operations

-- Age: 44 (born: March 25, 1971)

-- Date of hire: Sept. 29, 2007 marked the start of Hill's first stint as Marlins GM, before he was promoted to president of baseball operations after 2013 with Dan Jennings' rise to GM. With Jennings kicked out of the organization after his attempt at managing the club in 2015, effective on Oct. 29 Hill resumed the responsibilities of GM.

-- College/education: Harvard

-- Previous job: Before he was the GM or president of baseball operations, Hill was the Marlins' assistant GM.

-- GMs worked under: Chuck LaMar, Dan O'Dowd, Larry Beinfest

-- Front-office experience (in years): 21

-- Playing experience: Minor leagues (first base/outfielder), 1993 31st-round pick (Rangers), two seasons (.223/.323/.330), reached short-season A-ball.

-- Notable achievement: Survival in a Jeffrey Loria-run organization is an achievement of sorts, something that neither Beinfest (fired after 2013) or Jennings (axed six weeks ago) can say. Hill has been with the Marlins since 2003.

-- Does the buck stop with him? No, because Loria is still a very hands-on owner with pronounced "Boss" tendencies. As is, Hill wasn't given that much authority working with and for Beinfest, and assistant GM Mike Berger is expected to play a larger role in the future.

Milwaukee Brewers: David Stearns

-- Official title: GM

-- Age: 30

-- Date of hire: Sept. 21, 2015

-- College/education: Harvard

-- Previous job: Assistant GM, Houston Astros

-- GMs worked under: Jeff Luhnow, Chris Antonetti, Mark Shapiro, Omar Minaya, David Littlefield

-- Front-office experience (in years): Nine

-- Playing experience: None

-- Notable achievement: Impressing this many people inside the game this quickly, because tabbing Stearns instantly got him associated with front-office tyros like Theo Epstein and Jon Daniels, both hired even younger. Stearns spent three years working in MLB's central office, working in labor relations and on the Collective Bargaining Agreement in 2008.

-- Does the buck stop with him? Yes. He didn't waste time firing most of manager Craig Counsell's staff while reassigning veteran execs like Gord Ash and Reid Nichols, and he already has pulled off three trades in as many months.

New York Mets: Sandy Alderson

-- Official title: GM

-- Age: 68 (born: Nov. 22, 1947)

-- Date of hire: Oct. 29, 2010

-- College/education: Dartmouth, Harvard Law

-- Previous job: MLB's trouble-shooter cleaning up corruption in Dominican baseball; before that, CEO of the San Diego Padres for five years.

-- GMs worked under: None. As an attorney, Alderson was part of the group that stepped into the management vacuum the Haas family inherited upon buying the A's from Charlie Finley in 1981, and became the GM in 1983.

-- Front-office experience (in years): 35

-- Playing experience: College (second base)

-- Notable achievements: Alderson is one of the game's great fixers, having rebuilt the A's, dealt with the difficult handoff of the Padres in the wake of owner John Moores' divorce, managed MLB's baseball operations department, the Dominican job, and now winning a pennant with the Mets. Among a host of trades, you can cite getting Travis d'Arnaud and Noah Syndergaard from the Blue Jays in the December 2012 trade that sent R.A. Dickey north as his latest triumph.

-- Does the buck stop with him? Yes, especially since he's managing around the Wilpons' unusual financial circumstances in the wake of their involvement with Wall Street fraud Bernie Madoff.

Philadelphia Phillies: Matt Klentak

-- Official title: VP and GM

-- Age: 35

-- Date of hire: Oct. 26, 2015

-- College/education: Dartmouth

-- Previous job: Assistant general manager, Los Angeles Angels

-- GMs worked under: Jerry Dipoto, Andy MacPhail, Dan O'Dowd

-- Front-office experience (in years): 13

-- Playing experience: College (shortstop)

-- Notable achievement: Before he was one of Dipoto's assistant GMs with the Angels from 2012-2015, Klentak was director of baseball operations for MacPhail with the Orioles for three years. Before that, he was in MLB's labor relations department.

-- Does the buck stop with him? Not entirely. You can expect this to be another generational hand-off in slow motion from MacPhail to Klentak as they rebuild from the mess they inherited.

Pittsburgh Pirates: Neal Huntington

-- Official title: Senior VP and GM

-- Age: 46 (born: Feb. 4, 1969)

-- Date of hire: Sept. 25, 2007

-- College/education: Amherst (with a subsequent MA in sports management)

-- Previous job: Special assistant to the GM (Shapiro), Indians

-- GMs worked under: Dan Duquette, Kevin Malone, Jim Beattie, John Hart, Mark Shapiro

-- Front-office experience (in years): 24

-- Playing experience: College (first base)

-- Notable achievements: As part of rebuilding the Pirates into a top team, you can cite his signing Andrew McCutchen to a long-term deal, the drafting that put Gerrit Cole at the front of his rotation, signing power lefty Francisco Liriano, or trading for closer Mark Melancon. Huntington's long-awaited success lacks for nothing -- but a ring.

-- Does the buck stop with him? Yes.

St. Louis Cardinals: John Mozeliak

-- Official title: Senior VP and GM

-- Age: 46 (born: Jan. 18, 1969)

-- Date of hire: Oct. 31, 2007

-- College/education: Colorado

-- Previous job: Assistant general manager, Cardinals

-- GMs worked under: Walt Jocketty, Bob Gebhard

-- Front-office experience (in years): 23

-- Playing experience: High school and American Legion (first base and pitcher)

-- Notable achievements: His role in drafting Albert Pujols (1999) and Yadier Molina (2000) as the Cardinals' director of scouting might be his finest service, but trading popular veteran Jim Edmonds for David Freese less than two months into the job was gutsy -- and successful.

-- Does the buck stop with him? Yes.

San Diego Padres: A.J. Preller

-- Official title: Executive VP and GM

-- Age: 38

-- Date of hire: Aug. 6, 2014

-- College/education: Cornell

-- Previous job: Assistant general manager, Rangers

-- GMs worked under: Jon Daniels, Dan Evans, Paul DePodesta, Frank Robinson

-- Front-office experience (in years): 17

-- Playing experience: None

-- Notable achievement: Making the Padres interesting, because his first Hot Stove season involved signing James Shields and trading for Craig Kimbrel, Matt Kemp and Wil Myers. He already has flipped Kimbrel to the Red Sox for a package of prospects, creating higher expectations for more mayhem at the winter meetings.

-- Does the buck stop with him? Yes.

San Francisco Giants: Bobby Evans

-- Official title: Senior VP and GM

-- Age: 46

-- Date of hire: April 3, 2015

-- College/education: UNC-Chapel Hill

-- Previous job: Assistant GM, Giants

-- GMs worked under: Brian Sabean, Bob Quinn Sr., Lou Gorman

-- Front-office experience (in years): 25

-- Playing experience: Club level in college.

-- Notable achievement: Evans has handled the negotiations of many of the Giants' big contracts, hammering out agreements with Buster Posey, Madison Bumgarner, Matt Cain and most recently Brandon Crawford.

-- Does the buck stop with him? No, he still reports to Brian Sabean, whose title is now executive VP, but they've been working together for 22 years, since the day Sabean hired him.

Washington Nationals: Mike Rizzo

-- Official title: President of baseball operations/GM

-- Age: 54 (born: Dec. 14, 1960)

-- Date of hire: March 4, 2009 (interim, formalized on Aug. 20, 2009)

-- College/education: St. Xavier

-- Previous job: Assistant GM, Nationals

-- GMs worked under: Jim Bowden, Larry Himes, Dan Duquette, Joe Garagiola, Bob Gebhard, Josh Byrnes

-- Front-office experience (in years): 30

-- Playing experience: Minor leagues (infielder), 1982 22nd-round pick (Angels), three seasons (.247/.312/.329), reached High-A Cal League.

-- Notable achievement: Signing Max Scherzer last winter has to rank ahead of comparatively straightforward decisions like drafting Bryce Harper and Stephen Strasburg.

-- Does the buck stop with him? Yes.

American League GMs | National League GMs