Nubbs actually had it pretty rich for awhile there in the Big 12, Buffies were their only real competition for Nortard titles, and that was only for a few years. Got out of playing tough games with OU every year. It got crappy for them when the 'Cats started beating them every once in awhile, and intolerable when ku hung 76 points on them in 2007. The '09 title game with UT was the last straw, Dr. Tom started looking for a new playground after the refs wouldn't break the rules to let Nebraska win that game.
Nubbs are butthurt about a lot of things in the Big 12. I think they like their new Rust Bowl conference.