Pac-12 programs did not move in this week's updated class rankings. Arizona continues to pace the Pac-12 at No. 23, while Stanford is second in the conference at No. 28. Arizona State checks in at No. 35, while USC hangs on to the No. 40 spot. There's a chance a new Pac-12 team will be knocking at the door soon, however. UCLA seems to be gaining momentum and added two commitments Tuesday evening, while several conference programs will be looking to generate recruiting momentum with home games in front of important visitors this weekend.