I think what noone talks about is USC's offensive line. The key to winning championships is to have dominating offensive and defensive lines. You can put spares in at the other positions and still win championships if you are dominant in the trenches.
The lines are important but in college it's all about speed.....
I agree. USC dominated the line of scrimmage on both sides of the ball. (Their receivers and QB also dominated OU's secondary.) The OU coach, who blamed it all on his team's "mistakes", didn't have the grace to admit the obvious.