Training is not an easy job and it is no easier for the training director. That is why I get a little snarky at an unplanned training session. When a group goes out to train it should have a predetermined schedule so that everyone at the training session knows what is going to happen next. Before bringing out the dogs the person in charge of the day must assay the field and pick where to run the dogs. Once he has chosen where to set up the field, the workers will set up the equipment, place poles for blinds or as targets to throw the birds and then get into position with an adequate supply of birds for at least a half dozen dogs. Each worker should know whether he is number 1, 2 or 3 and where to throw. Then after everything is explained to the handlers, they can bring the dogs to the line and start training.
As the day progresses the director can adjust the field to throw into other areas and rearrange the sequence of the throwers as needed. Communication to everyone present is important so that training goes smoothly.
Whether or not the workers are within earshot is something to consider when training. A radio or cell phone will help minimize misunderstanding and is a matter of choice but using them will make the training session run more smoothly.
Talking is inevitable and should be kept to a minimum to keep the session moving. There is plenty of time to discuss things afterward.