Pac-12 Power Rankings: Stanford, Oregon, USC, survive upset bids

Oct 31, 2015; Salt Lake City, UT, USA; Utah Utes linebacker Jared Norris (41) moves in to tackle Oregon State Beavers quarterback Nick Mitchell (14) during the second half at Rice-Eccles Stadium. Utah won 27-12. Mandatory Credit: Russ Isabella-USA TODAY Sports

Next: 11. Arizona