Well, since I only write books in post-game analysis, I will try to give just a few bright line things here.
Hats and hand placement, line of scrimmage reset, individual bust versus synchronization, balance, and backfield interference.
Start by looking at the Cyclone helmets, are they lower across the board than the UNI helmets, then move down to their hands, are they inside on the chest plate. If the hats are lower and the hands are inside, then results will follow.
Then watch for leaning versus balanced, grounded footwork. If the lineman is leaning he will lose contact and leverage, be pulled forward or back, or be tossed aside because his base is compromised with a single foot contact point. If those feet are drum rolling to the ground in a balanced position then it is more likely that the block is sustained through the particular level on which they are blocking.
Start there. Hats and hands and balance and sustaining the blocks. If those are present collectively or in 4 of the 5 and the bust is not at the attack point, then there will be progress and yards to gain.