COLLEGE STATION – Kevin Sumlin has said all season (and even in the preseason) that he needed all three of his talented running backs this year. The No. 16 Aggies showed as much early in Saturday’s 63-21 victory at Auburn, when they scored the most points ever by a Tigers opponent at Jordan-Hare Stadium and turned in their top rushing game this season with 352 yards. “We’ll play them all, and we need them all,” Sumlin said this afternoon during his weekly press conference, with No. 15 Mississippi State on tap starting 11 a.m. Saturday in Starkville, Miss.