Roxy, Sampson, Zeus, and Rocko are all sitting politely while they wait for Anitra to toss a ball. A calm, confident leader sets and consistently enforces the same rules and expectations for all dogs to follow. Then there's no question as to where anyone is in the pecking order and no need for disputes. There's no snapping or pushing other dogs out of the way or fighting over the ball. Everyone has to wait calmly for it to be thrown.
They all know Anitra leads the way and all they have to do is follow, which makes for a very happy and relaxed household.