Baseball players are known as creatures of habit. If a player is at a certain position and a certain spot in the lineup all year, they'll do better than if they are bounced around.
Managers are the same way, as they have plenty of habits of their own. Some of them are superstitions, or things designed ot help the team. Others, however, are just plain annoying.
The following is every manager's most annoying habit. Some habits may be disputable, as what constitutes annoying is naturally subjective, and this is merely one writer's point of view.