Even if Oregon goes 9-0 in the PAC and wins the championship and 0-3 Arizona turns the ship around and wins the PAC South with a 5-4 conference record...there are not enough losses to go around. Someone other than Oregon is mathematically guaranteed to have at least 6 wins and are, thus, bowl eligible. In fact, I think it's guaranteed that at least 4 other PAC schools have at least 6 wins.