if USC, Washington, and Oregon left?
Probably not much better than what the Big-12 leftovers are worth.
Remember in the late 18th century--what did all the royal families in Europe fear? Revolution. As they watched the French royalty go to the guillatines, they were all terrified that it could happen to them and that their people would get "revolutionary ideas."
I am not saying there are signs the USC, WA, and OR are going to "trim the fat", but if you are Utah or Washington St or something, you should be hoping that they aren't getting ideas.