Actually their defense is their weakest link IMO. Twice now they've allowed less talented teams to stay in the thick of things right thru to the 3rd quarter. They can't afford to do that with more talented teams. If a team can jump out to a quick lead (2 TD's for example), I look for OU to struggle because they're not a come from behind team.
AD's game against Wash showed me he's not running his typical style of running. He's trying to juke and jive more this season and that's not his forte. His strength is running thru and over tacklers, not around them. But...he's still a very impressive running back. And fast!!! Holy smokes is that kid fast!