Getting a turnover would get in their heads though. Oregon can come back in a hurry with even a little momentum. Any chance you have to stick a boot to their neck you take.
Just one example out of a million. How about the pass interference call on 4th down in the first half the play before Mariota fumbled? Are you kidding me? Not only was the ball clearly tipped by the lineman at the line of scrimmage, but the DB didn't even touch the WR! They screwed that one up two times over on one singular play and it was a huge one!