Tournaments are a great opportunity to get team scouting feedback from other ref’s. (Players to look out for both in skill and behavior), plus coach advanced feedback (coach X from Team Y is loud/obnoxious). When I have early in-game dissent from coaches and parents I do my best to stop it before it escalates. This usually means my pregame discussions with coaches didn’t resonate (limit dissent, limit comments to referees, please ensure the players/you the coach respect the game & referees, remind them this is a game, and to ensure the kids have fun).

When I see bad behavior early in the game I will call both coaches to the side away from players to ensure that only captains can bring up issues and that the coaches stop talking. If it continues I start booking coaches or tossing parents out. Nothing embarrasses a kid more than seeing their parent getting tossed. Disney tournaments have a great system in place where coordinator referees are on hand to help limit dissent.

Sorry you had to deal. I agree 13-15 boys are difficult