UCLA and ASU play this week. One of them has to lose. South Carolina could lose this week if they play with the same effort they did Vandy (don't count on it, though, as Vandy has simply become an annoying thorn for Carolina to just survive every season). Oregon State has been a SoCal slayer for years now. Washington might upset Stanford.
This is how it's going to be the rest of the season. Every week there will be teams ahead of us that lose, and we will move up because of it so long as we win (or, don't lose during a bye week).