Ted Miller Four of the five Pac-12 teams that entered spring with wide-open quarterback competitions are now finished with practices and are headed into the offseason.So ... what did we learn? A little but not a lot. We didn't expect much resolution and we didn't get it. So, hey, we lived up to expectations.Arizona, California, Colorado, Oregon State and USC entered the spring with wide-open battles. Of them, only Oregon State is still practicing, and coach Mike Riley has said he won't decide between Cody Vaz and Sean Mannion until the fall. Originally posted by ESPN.com - Pac-12 Blog Click here to view the article.