Notre Dame likely has the better QB and CBs here and the RB position is probably a stalemate. Those are pretty important positions to be at least even. Problem is I'm not sure where else they are better.
The defense has to create some havoc plays, which they haven't really done much of, and it would be super if ND's absurd bad fumble luck turns (they have not recovered a single fumble all year despite forcing 7 of them).
I expect a close game but as a ND win over Ohio State has never been televised, I will believe it when I see it.