What's happening to the Celtics now just shows how difficult it can be to manage players and all of the unpredictable things that can happen... Who could've predicted that Kyrie and Tatum wouldn't get along? Or that Kyrie would suddenly become a flat earth conspiracy nut? How often does a new free agent suffer a gruesome season ending injury five minutes into his very first game? Pop & Phil Jackson have both said it multiple times: it takes great skill combined with good luck to win a championship.