Five takeaways from baseball's postseason field of 64

— -- The field of 64 is set for the NCAA baseball postseason. The unveiling of the bracket on Monday, with regional play to begin Thursday on the ESPN family of networks, featured two teams apiece from the ACC, SEC, Big 12 and Pac-12 among the eight national seeds.

Don't expect chalk in June, though, as 11 of the past 13 national champions -- including five straight since South Carolina won the title in 2011 -- came from outside the pool of national seeds. Winners of the 16 regional will meet in super-regional play, June 9 through 12.

The College World Series opens on June 17 in Omaha, Nebraska. Here are five takeaways from the announcement of the tournament field: