It starts at the top. It takes a good leader who knows what he's doing and is not afraid to delegate responsabilities. He has to know the strenght and weakness of each (workers, players) in his team and most of all treat each and everyone of them with RESPECT and they'll respect the leader. If the leader can mix a bit of psychology, he can have his workers do what ever he wants, even the most tiddiest, durtiest job there is but he also has to be able to get durty hiumself and give the exemple. I used to lead big crews on major jobs across the US (up to 40 guys) and I was very successful but I would not have anyone do something I woud not do myself.