defense against a bigger stronger team... Coach please give me your input.

Coach, I want to know your view of how to stop a team that is bigger and stronger. I coach in south Fla. We are 6-1. They are 7-0. Qb is not a great thrower for them. They do run lots of stuff. For example, they run Unbalanced King and Queen formations in power short yardage situations. They run two tight ends with I as well. They run pro I set. They run doubles with I formation (generally when they pass). They have great fullback, good halfback and stud guard/tackle. They run counters and straight ahead and play action from the two tight end set. That one is the toughest for us because it forces us to play them pretty much straight up! Last year our only two losses were to them! They finished second in state. We tried 50, and 4-3. Planning on trying a little 60 this time, with our inside guys (we moved some bulk there) cutting low to create a wad! Any other thoughts or ideas? Great middle linebacker and hurting on line depth. Doesnt sound good huh? lol... Well we were in both games last year against them, but they just were too much for our line! HELP! lol.. We play this Friday! I love your sight, by the way!