Their QB's and receivers are horrible, their Offensive Line and Tight Ends produce NFL talent, you're spot on with game management and their defense is a rock. They always win BS games like that because of their defense.
You're also spot on about flipping sides of where they're bad. That said, 100 times of of 100, I'd take a dominant defense. Obviously, both are preferred, but give me the defensive and like you said.....manage the game, take FG's and get the game into the 4th quarter. They play like they did vs ISU, but last year, with the same trash offense, they were right there with Indiana, while we were headed towards losing by 70.
With our D, we know going in to all games that we need 30+ to be in it.