Watching the two team dynamics during the playoffs was interesting. The Cavs have an amazing leader with both the physical and mental strength and stamina to lead his team through personal example. LeBron James works hard to lead and to win.
The Warriors have multiple players – Curry, Durant, Green, Thompson, Pachulia – with the same attributes in the physical and mental realms. They also have each other. They also have a coach who has taught them how to play together, how to give and take from one another, how to build something much much larger out of their collective skills.
Leadership is huge. But it is not the only thing.