"Motivating through fear may work in the short term to get people to do something, but over the long run I believe personal pride is a much greater motivator. It produces far better results that last for a much longer time." John Wooden
In my experience he is completely right. A coach can instill fear in his or her players, but their actions wont be sincere. It makes good for the moment, but not for the long haul. If an athlete takes pride in their work habits they will find themselves in successful situations some people would attribute to luck. Isn't it amazing that luck comes more often to those that work hard!