Another goof
When they are watching clips of Callahan vs. Ohio State and Mack, the first time they watch his "winning" TD pass the formation the Badgers line up in has a halfback.
When they watch it a second time there is no halfback and coach Penn even comments that Wisconsin runs most of its passing plays from an empty backfield (they actually say at first there's no "fullback"). This is when we learn there's no Vontae on the field for tOSU.
There definitely was a halfback the first time they watch it... an empty backfield the second time.