How do you attack this defense?

Sunday we play against a team that uses the same defense we do. I suppose it's because we've seen a lot of success with it, but this defense is being used more and more in our league now. What we will see vs. a two tight end set is a DT in both A gaps, DE's in both C gaps, the two inside linebackers are lined up over the guards with B gap responsibility, and the two OLB's are lined up outside the end man on the line of scrimmage. The corners and safety play cover three. What can we do to attack this defense? I know the main thought is, that when you encounter 8 in the box you have to throw, but at the youth level, that isn't something you can do consistently. So you have to rely on the running game more. Any ideas would be appreciated.