Redshirting is not a popular term among the nation's top football prospects, but a quick look at the recent Heisman Trophy winners shows the importance of that extra year of development. The list below may not include the next Jameis Winston or Johnny Manziel, but we feel these players, once prominent recruits in the 2014 class, are in position to make big debuts in the 2015 college football season.

Five-star cornerback Marlon Humphrey could make a name for himself in 2015. Miller Safrit/ESPN

1. Marlon Humphrey (Alabama) -- A youth movement is going to be underway on the perimeter for Alabama this fall and while 2014 classmate Tony Brown saw some time last year, Humphrey will be joining the fray in 2015. Humphrey fits the physical dimensions coach Nick Saban wants at corner. The former five-star is big, can run and is savvy when it comes to playing different schemes.