I watched a documentary on the 1997 Husker Team and Grant Wistrom talked about when have a team down you step on their throats and never let up. Nebraska has forgotten that 22 years and counting.
They've forgotten more than that. They've forgotten how to run the ball against a team only rushing three guys. They've forgotten you don't fair catch a punt at the two yard line. They've forgotten you don't take a huge sack in OT when you need a FG to keep alive.