ND's rushing attack was pretty well shut down by Indiana after Love ran for 98. It was almost non-existent against Georgia.
For some reason, as the guys at Irish Breakdown pointed out, the last 11 quarters of football have seen the ND O-line unable to create holes or get a push. If this happens again against Penn State, it could be a long night. Hopefully Denbrock can scheme around this and Rudolph can find something that will work.