Any parent with more than one child knows how different they are (pet owners know this too). In sports, most of the great coaches are successful because they know each player requires a different type of leadership. Unfortunately, many leaders have one leadership style they apply to each of their direct reports and expect their direct reports to excel.
Everyone has different behavior styles and workplace motivations. Some direct reports respond best with a firm message, others with a gentle nudging, and others with lengthy conversations. Some people are motivated by recognition, some by money, and others by altruism, etc. The best leaders take time to understand their direct reports' differences and tailor their leadership approaches to each person.
Empowered leaders understand their direct reports' behavioral styles and motivations, apply unique leadership approaches, and are more successful.