The start of spring practice is still over a month away, but college football coaches have already turned the page from 2012 to 2013. With the passing of the NFL Draft deadline, along with Signing Day, coaches have a good idea about their roster and some of the holes facing their team. Even though it’s January, it’s never too early to start thinking about replacements for some of college football’s top departing players. USC had a disappointing 2012 campaign, but the Trojans still have the talent to compete for the Pac-12 South title. However, replacing quarterback Matt Barkley will be no easy task. Max Wittek made two starts late in the year and will begin spring practice as the favorite to start under center for USC. In addition to Wittek, the spotlight will be on Oklahoma’s Blake Bell, Stanford’s Barry Sanders Jr. and Wisconsin’s James White and Melvin Gordon – just to name a few.