Jason Tester is officially back in Eastside green as he is set to become the Eagles’ new defensive coordinator next season.Tester spent his last three seasons as the head coach of the Flowery Branch Falcons. Even though he is back at Eastside for the first time since 2013, Tester noted how many of the faces are still the same.“It’s surreal, going in and being introduced to the kids. Being around coach Cawthon, coach Hoff, and coach Iverson — we picked up right where we left off from last time we hooked up,” Tester said.