Things were already looking bad in recent weeks for the Pac 12. USC had to go overtime to beat Texas at home, part of a string of poor performances against market expectations this season. Washington, who was squashed in the Final Four last year by national runner-up Alabama, looked awful in a road loss at Arizona State. Supposed up-and-comer Washington State was embarrassed at California. Stanford? They have a Heisman Trophy candidate, but their loss at USC looks even worse now than it did at the time.

Now, Saturday night’s 49-14 loss for USC at Notre Dame makes it very hard…