The biggest risk I see if the OSU defense before it has a big lead to work with. We have all seen opponents go right down the field, convert multiple 3rd downs and generally do, controlled, damage until the offense makes them play one handed.
The bad scenario for OSU is if tsun can come out riding the emotion and home crowd and stay in it more like Penn State and Nebraska did or even, Woody forbid, get a lead. Their offense is going to be a problem vs the OSU defense with less than a 14 point lead.
Similar to the lead up to the last two weeks, it's a match up of contrasting styles so it's really hard to predict and likely to be all or nothing. If tsun keeps it close they are a legit threat to win. If OSU goes all Purdue/MSU on them early, there is now way that tsun offense can play from behind well at all.
I will say that, generally, the more talented team can usually impose it's will/style in these kind of games and there is no question who has the better talent at almost every position.