Earn the respect from the players at the very start of the game. If you know you have a "time bomb" on your hands, tell the captains (and the coaches) at the coin toss that you are going to call it tight and your not going to tolerate anything LATE or FROM BEHIND.
Blow the whistle at the first infraction and stay consistent. Show a card if necessary. The girls will settle down.
Now the boys.........that's another forum.
