The biggest mistake leaders make is to think it is all about them. They believe that success or failure is a direct result of their own personal behavior rather than a team effort. Show me a successful leader and I will show you a person surrounded by good people who each do their own jobs exceedingly well. While it is common practice in this country to celebrate the individual, no one builds a high performing organization by themselves. This doesn’t mean that the leader isn’t an essential ingredient; however, he/she needs other ingredients to complete the recipe.