The Pac-10 should promote a meaningless but interesting competition within the regular season that goes as follows:
Call it the California Cup and the Northwest Cup. Since the conference now plays round-robin, the team(s) with the best intracup record gets some kind of recognition and conference money donated to a charity of their choice.
The California cup would obviously pit USC, UCLA, Cal and Stanford against each other while the Northwest Cup would see Washington, Washington State, Oregon and Oregon State battle. Apologies to the Arizona schools but as we already know, they have the prestigious Territorial Cup already established.