USC, Oregon, Washington would be guarantees in this situation. Who could possibly be kicked out of the big 12 that would possibly open up some spots as well? The California Schools demand to play each other every year so you have to imagine they would demand all of them go. If you can find 1 or 2 big 12 schools to go you could easily argues either for either of the Arizona schools, Utah or Colorado. Another thing to consider is why not make an 18 team conference with a 9 game conference schedule?