01:53 PM ET 02.28 | USC quarterback Matt Barkley had a tough year in 2012, and has gone from being a possible top draft pick to possibly sliding out of the first round all together. However, Trojans head coach Lane Kiffin still believes in him, and thinks that the team's poor defensive showing in 2012 hurt the quarterback's draft stock. He said, "If Matt Barkley had the defense that Matt Leinart and Carson Palmer had, Matt Barkley would have won the Heisman Trophy just like they did. He would have had the winning records they had." There may be an element of truth to that, but USC's defense didn't make Barkley throw 15 interceptions last year.