ND has an amount of size, strength, and numbers at the interior DL that I'd guess over 80% of all FBS rosters would be envious of.
The most coveted physical trait in football is explosiveness which they might be sorely lacking, but they could still have a healthy 3 deep rotation at each position. At the very least they should eat up blocks and stay fresh as well as anyone.
My biggest concern is that Elston is as inept at rotating players as the previous staff was, but I hear Elko's philosophy should fix that.
ND's Achilles heel will be between their ears like it always is.