Bill Russell, one of the greatest winners in sports history who won a record-setting 11 NBA championships, embodied the concept of a “player-coach” leader. He leaned into his strengths to maximize the potential of his team, not only himself. In fact, the final two championships are arguably the most impressive of his storied career. During this time, Russell was tasked with being the Boston Celtics’ leader on the court as he had been for over a decade while simultaneously functioning as the team’s head coach.