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.
Focus on what you do well and then delegate everything else you possibly can. Many leaders spend far too much time on things they aren’t good at. Leadership is about effectively growing, leveraging and deploying assets. If the top personnel resource in the company is being used inefficiently or ineffectively what does that say about the organization as a whole? Time is finite and once it is wasted it is gone.