The teams I would get rid of would be Baylor and ISU.
Wow...you share the basement with somebody for a season and you think you know em.... <_<
I'm sure you realize that while ISU hasn't had a stellar Big 12 career, they have managed to rack up 5 winning seasons and 5 bowl bids while, for example, Kansas has a lifetime Big 12 record of 62-78 (22-38 while playing North opponents head to head) with just 2 outright winning seasons and 3 bowl bids? How about we kick them out too or even before Iowa State since KU is one of the teams that ISU has a winning record against (the other being MU) since Big 12 North play began?
Try looking past last year dude.... <_<