Texas and Oklahoma left?
Who else is in the PAC with BYU? Or was it the PAC 13?
I think the PAC 12 would have backfilled with Big 12 schools rather than the other way around.
Probably add Kansas, TCU, SDSU, and one other Big 12 school when USC + UCLA left...then also add 2-4 more Big 12 schools when Oregon + Washington bolted.