It just came to me. Along with another old cliché, "You can't control everything so control the things that you can. Like how you play." Actually, I think that cliché about luck does explain a lot. I think great players & great teams create their own luck. They have such unwavering belief in themselves, their teammates & their coaches that when things get tough in a game they believe that they can't lose. Maybe not always but even when they lose they still believe. And they win more than than they lose because of that belief or mindset. How many times have we seen bad teams fold when the going gets tough? They don't have a belief system of winning & it's is not part of a bad team's culture.