Coach Adam Wood may have stumbled onto a winning formula during his first season as head coach of the Warren County Middle School football team. When the Pioneers don’t let their opponent score, the team is undefeated. Warren County improved to 2-3 this season Tuesday night when the Pioneers beat Tullahoma East Middle School 8-0 on the road.Shutting out each opponent is always the goal for the Warren County defense and it has happened twice this season.