How much dissent should we allow?

[evazz]

Sound like its a big problem otherwise you would not had posted. I ref. up to the 16 year old group. I have found the group bettween 12 and 16 year old to have the loose tongue. What I do at the inspection time is that I tell the team and I quote,"only two people can talk to me during the game' the coach and the captain of the team. the rest of you should be talking Soccer to each other." (You can word it to meet your situation.) If a team member or coach argue with me then I have no problem showing them the card for dissent.
Since I being doing this, givening cards for Dissent is almost zero.