Nebraska and Michigan should simply switch head coaches.
Harbaugh can run "man ball" at Nebraska, and scrap the whole "speed in space" thing that completely derailed his Michigan momentum. If anyone is going to be able to out-Wisconsin Wisconsin in the B1G West, Nebraska plus Harbaugh would be most likely to do the trick.
Frost can run the whole "speed in space" thing properly at Michigan, with some 4 and 5 star athletes pouring in every year at the skill positions.