Its basically a case of Scheme discrimination, Wisconsin so often is flooded with NFL calibre offensive linemen that it has all most gotten to the point that NFL guys have stopped looking at the numbers these Badger backs are putting up.
Watch some of these holes these guys are running through, its not realistic at all to what they will face in the NFL.
The big question I have about Wisconsin, is why has no top HS running back talent from the South gone up there to run behind these guys. The numbers they would post would be numbing.
This scheme discrimination is the same kinda stuff that happened with the Florida Gator WRs in the Spurrier era.