If I'm BG (or any future opponent for that matter), I put 8 in the box and BEG us to try to air it out.
I'm inclined to think that after the CMU game, defensive coordinators will try what they did, which is pretty much exactly the opposite. They put man-on-man on each wide receiver, plus a safety to provide double coverage to make sure Ohio couldn't get an air attack going, and left only 6 in the box, and dared Ohio to run.