The hallmark of a great leader is someone who can extract a greater output than the sum of a teams parts. Tim Duncan of the San Antonio Spurs is the hallmark of a humble leader. He was the pillar for the most successful team from the late 90s to the early 2010s. The Spurs won the championship 5 times with Duncan at the helm, yet not once would you hear him take the credit for winning, despite him being one of the best players of all time. It was his humble, team-first nature that permeated throughout the organization, giving them the reputation as having the most beautiful offences in the league. It was his quite, calm leadership that kept the cohesion for 20 years. He was instrumental in mentoring younger players as are the entire organisation.