USC lost with stupidity, period.
That one play where Vince passed a lateral for a touchdown - he was CLEARLY down with a knee. But I guess USC was too stupid/big-headed/egotistic to challenge the call. That gave the horns 6 extra points, clearly enough for the game-breaker.
Also, Bush trying to do that lateral to get the most out of his spectacular running play - stupid, stupid move. Come on, kid, that's what the coaches' jobs are for.