Yea, I think Saban said that, as well. You're both wrong. So much depends on so much (as variables like QB ability, time to throw, running, blocking, catching etc.) but, defense will always keep you in a game - if they are good. If the offense struggles or has to press to make plays, TO's happen. Then momentum happens, as the game plays on and the O can't bust through a good defense? Frustration. Don't forget intimidation. How many times do you see the O intimidate the D? Hardly ever. The D players intimidate the O much more. Just think about a violent sack. Or a safety hitting a guy crossing the middle. Laying out a RB. Goal line stand. Meanwhile, a defense can score too.