I'd love to be able to go back and break down our rushing plays by play type (zone, counter, power, etc) to see where we excelled. But since I don't have time to do that...
First rushing TD - Modified power play (usually power is FB kick, BSG lead thru) - Nebraska actually did a decent job wrong arming Welsh (meaning he tried spilling it to the outside to where his help was), but playside seal was good (pretty sure they missed a false start on Alaric Jackson too) and Wadley running over Wieting actually helped the Nebraska defenders run right by.
Second rushing TD - Goal line power play...big boy football. Nothing fancy here...Kulick with the kick, Render pulls around and annihilates the Neb defender in the hole (seriously...take a look...he was trying to slide off Fant's block and got crushed). Wadley meets defender at the goal line but is not to be deterred.
Third rushing TD - Lead slant play. I'm calling it "slant" because a hundred years ago I went to the Iowa high school football coaches clinic and that was one of the concepts they went over and this looks remotely close. Everyone steps playside, the C and BSG drive the 1 technique to the backside LB, leave the FB on the Mike LB, and the LT/TE combo DE to S (don't worry about the CB because this play is hitting inside). Daniels and Welsh get the kudos on this play because they reset the LOS several yards downfield almost immediately...honorable mention to Ross for standing up the Neb MLB.
Fourth rushing TD - This looks like Iowa's pin and pull scheme. Notice Fant down blocks (or at worst man-on blocks) and Jackson and Render look for first color outside of him...this is an outside zone concept and you are trying to create flow in the defense to create cutback lanes in...perfect for a runner like Wadley. Sure enough, he hits one of those lanes, makes a safety miss in the hole and almost seems surprised there isn't more resistance heading into the end zone.
Fifth rushing TD - Outside zone...Welsh trying to get a cut block on backside pursuit. Fant taking deep bucket step to allow rush to come up field to better his seal angle. Young finds a nice crease and moves in untouched.
Prior to sixth rushing TD (Long run by IKM) - Looks like the same slant play as the third TD. BSG/C double to backside LB, FB takes Mike LB, seal on the backside by Wirfs is solid.
Sixth rushing TD - Looks like zone lead to me...created a crease on the play side and led the FB on first color in the hole...nice assist by a host of OL to get IKM the extra half yard for the score.
One more run I looked at was the big Wadley run coming out of the end zone on the first (?) possession. It looks exactly like the slant play referenced earlier except there was a run fit bust on Nebraska's defense. I think the Mike LB jumped into the A gap and should have been in the B gap where he would have met the FB and the hole would have been considerably smaller (meaning the safety wouldn't have gotten juked out of his jock by Wadley). Nebraska shifted late on this play and it would appear as though the Mike missed his assignment.