ND can run the ball on scUM, their linebackers, particularly McGrone and Hudson, while athletic and superior pass rushers, are undersized and aren't particularly great at taking on blocks in the run game.
Also, scUM has fumbled a whopping 17 times this season, which ranks near the bottom of the nation. On the flip side, ND is in the top 10 with 9 fumbles forced. That being said I hope the boys wrap up and tackle with solid fundamentals and let the rain and scUM's shotty ball protection take care of itself.
I think it will be very similar to MSU/scUM in 2017 at the Big House. I don't think scUM can get out of their own way offensively and ND will play the field position battle on the way to catching a couple of breaks for a low scoring W.
Make no bones about it, we are the better coached team and more fundamentally sound. That will be crucial in a game played in conditions we expect to see tomorrow.