Advanced placement

KIDS GROW UP so fast these days. Redshirt freshmen are Heisman winners, and 19-year-olds are entering their final season of college football. So it's no surprise that coaches are penciling in early enrollees as starters before they even play a spring game. With some insight from RecruitingNation, we sized up two blue chips who have the talent to shore up a massive hole atop their team's depth chart.