USC started preparing for Western Michigan game today. Jack Sears worked with the scout team and is officially now the No. 3 QB, which means Matt Fink is the backup. Viane Talamaivao was carted off the field with a foot injury but Clay Helton said he would only be out a couple days. Freshman safety Isaiah Pola-Moa had shoulder surgery and is out for the season. Defensive end Hunter Echols had surgery for an infection in his hip and will be out 6-8 weeks. He was expected to redshirt anyways.