I like many of KB's points but a few things:
1) There is no such thing as Southern Cal. That term is an ignorant creation of the midwestern and eastern press. The USC SID Tim Tessalone puts a note in his media guide every year that it's not an acceptable reference, for print or media covering USC games. It's like saying South Fla for the University of South Florida, or North Car for the University of North Carolina.
2) Yards per attempt is a pro stat, not a college stat. I work in a sports stat office and we emphasize YPA above all in pros, and don't even chart it in college. I can't even imagine charting it in college given the nature of the sport.
Vince Young's game simply doesn't translate perfectly to the NFL, where he won't have zone read plays to rely on and his flawed throwing motion will be a liability much more often. Plus a loping long strider like that is going to get whacked in the big league. I don't agree his touch is poor. Last night he misfired on the downfield throws but that's hardly typical of the season. His accuracy and touch improved greatly this year. Young does tend to float the deep passes a bit too much.
Leinart had plenty of zip in the 2nd half. It's an overwhelming tendency with Leinart that he lobs the ball too much against lesser foes or defenses that he doesn't respect, but shows much more zip when USC feels threatened. I was very surprised he put so much air on passes in the first half, including the poorly thrown INT in the end zone. Going into the game I expected game long zip similar to last year's Orange Bowl. Leinart will have to be pestered in that regard in the NFL but I'm sure the game in and game out requirements will force a change in his velocity.
Cutler doesn't have enough variety in his pace and loft. I'm constantly amazed that isn't emphasized more. I watched almost every game, not just the celebrated comebacks against Tennessee and Florida. You take away his intermediate fastball and Cutler has almost nothing to fall back on. That's how he went 11 for 32 for 137 yards and 2 INTs against LSU. Before the Miami/LSU game I wrote on Canes message boards that it was a stern test for Kyle Wright because Wright has some of the same tendencies as Cutler, a strong arm but not enough variety in his lofts or enough field awareness to adjust to situation. Sure enough, Wright looked almost exactly the same as Cutler against LSU, if not worse.