Successful careers are not planned. They develop when people are prepared for opportunities because they know their strengths, their method of work, and their values. Knowing where one belongs can transform an ordinary person - hardworking and competent but otherwise mediocre - into an outstanding performer.
Peter DruckerSystematic decision review also shows executives their own weaknesses, particularly the areas in which they are simply incompetent. In these areas, smart executives don't make decisions or take actions. They delegate.
Peter DruckerWe all have a vast number of areas in which we have no talent or skill and little chance of becoming even mediocre. In those areas a knowledge workers should not take on work, jobs and assignments. It takes far more energy to improve from incompetence to mediocrity than it takes to improve from first-rate performance to excellence.
Peter Drucker