I know refs are going to miss calls, make bad calls because I am a qualified ref as well. The club I coached required all coaches and captains of the team to take the test,pass it, and ref in the lower ages. The refs I've run up against don't do any preventive reffing its straight to the card. There is no communication with the players at all. They don't tell them what is going on they just give hand signals and carry on. Not all players know the hand signals. They could save themselves a lot of hassle if they vocalized a little more and gave a little less attitude (appeared to enjoy doing it). As a coach you try to tell them what the signals mean but the ref is always closer. Just a thought.
