Sure, you always get the "use the QB spy and DE Contain" responses, but that doesn't always work. I have a friend who used to abuse me with Michael Vick all day, and now he still uses Young. I would recommend corner blitzes, it can catch them by surprise. Also, you should send some coverage into the flats. It's very unlikely they'll try a deep bomb all the way across the field, especially with Young's arm, though they are likely to try dumping it off to a TE on an out if you're about to drop the hammer on the QB. Try to force them towards the sidelines, because you don't want to have to face Vince Young 1v1 in the open field when he's running full speed. Someone good with him will take one juke and be off to the endzone.