I have the same reservations. I honestly don't care what the score is as long as we have more than the other team. But there are going to be times where our defense is going to have to step up and bail our offense out, just like there are times that our offense is going to have to bail our defense out, and if we can't do it, we're screwed.
The good thing about the defense right now is Mullen and Torbush aren't best friends for life, so if Torbush isn't getting the job done, Mullen probably will have no problem getting rid of him in an appropriate amount of time.
And he's also going to let Torbush do his thing, and not interfere, which is probably why we aren't hearing much- and I don't mind that at all. Croom let Ellis Johnson do his thing and that worked out pretty well, and I don't mind Mullen being heavily involved in the offense since he is so well thought of as a spread guru. I still don't like Mullen messing around with ST's, though.