Meaning I don't want WA, UO, because they are looking to leave, not to mention they are probably a poor cultural fit.... The best of the rest is not much to look at. Think about the 50 years the AZ schools have had access and done very little of note.
Stanford and Cal don't fit culturally, and would just cause friction, and aren't anything in the major sports anyway, and moving in the wrong direction.
CO didn't fit culturally in the Big XII the first time, wanted to be with the liberal academics, and of course, they have been in a constant decline, and doing nothing in the PAC. Not sure Prime is going to change that, and if he does he will leave anyway — and CO would drop back down IMO.
WSU probably fits culturally just fine, I wouldn't mind them, but they have had access to "privilege" for a long time, and done very little, so no thanks.
In the end, I think that PAC is going to continue to decline, and no need to hasten it by taking on their problems, just let it happen.