In reply to tobyfk: Work on skill, that's all that matters. try to keep them in some sort of shape. How many a side is it?
Just do Passing drills, dribbling, shooting, don't do any running/fitness/shuttles a waste of time.
Find the kid who can hammer a ball, stick him up front. u9's but you'll still need your enforcer, so get your hard lad and stick him at centre half or centre mid.
And just gee them up, it's amazing how much they'll know about the opposition, they'll probably be the local whipping boys so get their heads up.