The rules provide:
“Each team shall provide at least one legal ball to the referee at the time the game officials assume authority for the contest. Only legal balls approved by the referee may be used during the contest.
Each team may use any referee-approved ball of its choice to free kick or start a new series of downs.”
If both teams show up with non-Wilson balls, we play the game and write it up to the IHSAA. But if one team has Wilson and the other does not, we’re playing with the Wilson footballs. Once a ball is approved by the referee, it becomes a game ball, not a team ball. The team loses any right to determine how and when the ball is used.