 He returned in the same capacity for the Charlotte franchise in 1917 until the league folded (no doubt a war casualty) on May 30.Mack then became player-manager of the Hanover (Pennsylvania) Raiders of the Blue Ridge League, another Class D circuit.Mack achieved some success as the player/manager of the Moline Plowboys of the Class B Illinois–Indiana–Iowa League (often called the Three-I, or Three-Eye League).