The following passage is from "The 5 Levels of Leadership" by John Maxwell:
The vast majority of people don't start anything, nor do they stop anything. They just go along for the ride. If momentum is moving, they move with it. If it has stopped, so do they. Their productivity and effectiveness are based almost entirely on what others do to make things happen in the organization. for that reason, they need good leaders who produce and create a productive environment. That is one of the reasons that I define more as "faith in the leader."
The second type of person actually hurts morale and momentum in an organization. Not only do they not produce, but they prevent others from producing. These types of people cause problems and, whether intentionally or not, hurt the organization.
The final type, momentum makers, are Level 3 leaders. They produce. They make things happen. They create momentum. Their behavior is consistent with the advice given by the legendary Alabama football coach Paul "Bear" Bryant, who said, "Don't worry about making friends; don't worry about making enemies. Worry about winning, because if you win, your enemies can't hurt you, and if you lose, your friends can't stand you."