Please note that the article relates to youth sports or "kiddy" ball. It's certainly not very relevant to any higher level imo. It's certainly not relevant or recommended for any high school level.
Tell the coaches
before the game how they will have to talk to you? And the first time that they don't follow your instructions, you will.....? Put all the spectators over by the coach's bench? Heck, no...that wouldn't distract the coach.
If they
really want to improve youth sport's culture, they should just tell the parents to stay home. That'd work.