Leave the d alone. Incorporate and run: the shovel pass, a bunch of classic run plays (most from the I), the full back 1-2 times a game, a couple short slant passes, a bunch of designed short throws to the RB, and (this one is the most important) don't throw into coverage unless absolutely necessary (and just throw the ball away when necessary). This should diversify the offense and make it hard to defend, and also easy up the game for us as we should be able to overpower 1/2 of the teams we play with just power football. It wouldn't likely allow us to beat any really good teams (osu, wis, penn) but should stop the bleeding.
Oh, forgot to add play with some Fing EMOTION!