Whoever plays QB, I hope the offense can become a little less predictable. There has to be more to the offense than just Run up the middle and throw the slant to Johnson. They need to get all the receivers involved, and show some variety in the running game - some counters, toss sweeps, jet sweeps - something to keep the defense honest.
my gut tells me it's something like this - when you don't trust your defense, you keep the offense basic and try to avoid mistakes at all costs, because you don't want to give the ball back to the other team. But, if you trust your defense, you can afford to take a few more chances on offense, because one turnover, or some bad field position, is not going to doom your chances of winning.
So, the better the defense plays, I think (and hope) that the offense will feel free to open things up a little more.