"One of the jobs of a coach is 'Let's worry about today,'" Meyer told ESPN Radio. "... Down the road, I think we're going to be a very good team. Has my thought changed [since the injury]? Not at all."
Starting as a freshman, Miller has thrown 666 passes in his glittering three-year career. Barrett has never played in a game, and Jones has thrown only two passes.
Miller has run for 32 touchdowns and passed for 52, putting him in reach of many of Ohio State's career records for quarterbacks. Jones has run for one touchdown and has never thrown for one.
Barrett was an acclaimed recruit out of Wichita Falls, Texas, who watched with Jones last year as Miller took most of the snaps in the Buckeyes' 12-2 season. When Miller sprained a knee early against San Diego State and missed the rest of that game as well as the next two against California and Florida A&M, senior Kenny Guiton had big games while leading Ohio State to victories.
But Guiton graduated, and the Buckeyes might have to adapt on the fly. Making that even more difficult is that Ohio State is without four of its five starting offensive linemen, its leading receiver (Corey Brown) and 1,500-yard rusher Carlos Hyde from last year's team.
Miller missed most of his senior season at high school in Huber Heights, Ohio, and has frequently been sidelined with injuries at Ohio State. As a freshman, he sprained an ankle against Nebraska -- a game in which the Buckeyes built a big lead but blew it -- but was able to play in subsequent games.
Two years ago, he missed time during the game at Michigan State when he fell into an equipment case on the sideline and later in the game hyperextended his left knee. He was hit hard by Purdue's Josh Johnson later in the season and missed the rest of that game, with Guiton leading a stirring march in the final minute for a touchdown and the tying two-point conversion. The Buckeyes won in overtime.
Last season, after the knee injury, Miller partially tore the labrum in his right shoulder on the first possession against Clemson in the Orange Bowl. He played the rest of the game. When the injury was discovered later, he had surgery in February.
Ohio State said at the time that Miller had "minor, outpatient surgery." But he has had problems with the shoulder since.
Still, he has repeatedly said he would be ready to go in the opener and did so again between practices Monday. His workload had been reduced to avoid any ongoing soreness in the arm.
Miller has a $1 million total disability policy that he could collect if he never plays football again, a source told ESPN. That premium has been paid by Ohio State, according to the source, but Miller does not have loss-of-value insurance that would cover him if he significantly slipped in the NFL draft.
"This is our third year together," Meyer said of Miller. "When you spend that much time, especially with your quarterback ... A lot of people see No. 5, and they see that face mask and they barely see his face. This kid is a wonderful guy. There's no issues.
"He's a great kid who's an extreme competitor. ... He will play in the NFL, there's no doubt in my mind."
ESPN.com's Austin Ward, ESPN's Darren Rovell and The Associated Press contributed to this report.