Look at who they've had since Kush. I still maintain that ASU is a good hire away from being consistently legit. Whether or not they will do it is another matter entirely, and I'm not sure I'd buy that they will make a good hire.
SC is still on limited schollies. Couple things working against the northern division teams here... One is reduced visits to SoCal. Two is, as droski pointed out, the Oregon and Washington schools have all had a tough going for many years trying to keep the elite talent in state... Though I do think if you compiled Oregon and Washington's best in any given year it would amount to a fairly solid recruiting class. But it seems like 80% of them end up going to California or out east.
Oregon going down won't help anyone else in the Pac-10. They were more of a thorn in the side of USC as far as recruiting high level talent rather than a true challenger.