Systematic 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 DruckerEvery three or four years I pick a new subject. It may be Japanese art; it may be economics. Three years of study are by no means enough to master a subject but they are enough to understand it. SO for more than 60 years I have kept studying one subject at a time.
Peter DruckerThe three most charismatic leaders in this century inflicted more suffering on the human race than almost any trio in history: Hitler, Stalin, and Mao. What matters is not the leader's charisma. What matters is the leader's mission.
Peter Drucker