The common belief is that the DM is in charge, but the more I’ve been looking at things objectively the more I’m inclined to disagree. It seems to me that the players have a lot more power and influence over the campaign than anyone may realize.
At the very beginning of any game the DM is indeed in charge. He’s in control of the overall setting, the campaign objective, the party’s motivation and the monsters. The very first time the players sit down at the gaming table the DM is firmly in control. But as we all know, no plan survives contact with the enemy (the enemy being the players).