Along with our lack of a solid running game. If I was Georgia, I'd play tight press on the receivers to take away our short passing game and blitz. Then take my chances on ND beating them for a big play in the passing assuming the protection holds up. Yeah, Book will probably run for a few first downs on scrambles, but it would probably take away almost all of our passing game and if I'm them I'd accept that our running game might look a little better than expected because even so, it probably won't be enough to win the game. ND's best chance in that scenario is if they recognize what Georgia is doing and run quick hitter runs away from the blitz until Georgia stops crowding the line and then mix in the short passing game Book is best at and a play action for some longer shots when the down and distance isn't third and forever.
On D I'd probably want us to do a lot of the same, except for us the blitz's would be at least as much run blitz's with the hope of also limiting the time for Georgia to run a longer pass pattern. Probably mix in some stunts as well. Our DB's are pretty good, so putting them on an island is probably our best shot. It will be important for the safeties to be sharp to recognize play action and not bite too quick to where they can't provide support for longer passes, but still enough support to help stop the run game. Still probably get burned by some big plays