But the guy who's really made a difference is junior quarterback AJ McCarron and the way he's run this offense. He's in total command right now, and not just as a passer, but as a guy who's making all of the right decisions and all of the right checks.
He's been pretty impressive as a passer, too. The throw he dropped in to Christion Jones for 27 yards to set up the Tide's last touchdown before halftime couldn't have been thrown any better.
The other thing is that Alabama's skill players on offense are hard to tackle, and they make plays. Go back and watch junior receiver Kevin Norwood in last season's BCS National Championship Game and all the plays he made, and he's doing it again tonight.
And then there's junior running back Eddie Lacy, who has 304 all-purpose yards and four touchdowns in his last six quarters.
Defense wins championships, but offensive balance makes it a lot easier.