Three notable quarterback platoons that were successful in college football:
1. 2006 Florida Gators: Senior Chris Leak started at quarterback but occasionally was spelled by freshman Tim Tebow. The series to remember — with Tennessee leading 20-14 in the fourth quarter, Tebow came in and converted a fourth down in Volunteer territory, then Leak returned to the game and threw the game-winning touchdown pass in a 21-20 victory.
2. 1970 Nebraska Cornhuskers: The Huskers won the national title with Jerry Tagge and Van Brownson alternating at quarterback. They also alternated in 1969. Brownson started the '69 season opener, but nagging injuries opened the door for Tagge. In '70, tendinitis in his elbow sidelined Brownson early, though he recovered and was back in the lineup through October. But on Halloween, another elbow injury sidelined Brownson. Tagge took over and played the rest of the way. Brownson got in a couple of series in the Orange Bowl, but the Huskers had become Tagge's team.
3. 1994 Nebraska Cornhuskers: Tommie Frazier was one of the greatest quarterbacks in NCAA history. But when he was injured during the '94 season, Brook Berringer stepped in and played sensationally. Frazier returned and guided the unbeaten Huskers to the Orange Bowl. But against Miami, Nebraska coach Tom Osborne strategically inserted Berringer at times, and he threw a 19-yard touchdown pass midway through the second quarter to cut into Miami's 10-0 lead. The Huskers rallied for a 24-17 victory.