How do you think OSU will fare without him?
I think they will be ok.
If Notre Dame comes out throwing, Carpenter would have ended up as the 4th down lineman playing end anyway, so they will continue to play with Schlegel and Hawk and probably Lauranitis if they need him.
Lauranitis played great against Michigan as a true freshman so I can't tell you how much of a drop off there really is yet.