Ole Miss already has an established starting quarterback, turning to Jaxson Dart for a third consecutive season. Where the competition lies is to be the backup, with Walker Howard and Austin Simmons fighting for the spot. If anything were to happen to Dart, one of them would have to step up in a big situation for the Rebels. Dart was asked for his evaluation of the backup quarterback competition, speaking highly of both Howard and Simmons. With fall camp just getting started in Oxford, the battle is just getting rolling as well. Something fun should unfold during practices and Dart is excited …