No, Do Not Blow Up this Team.
Let Kyrie Irving go, if Danny and Brad cannot see that he has been an overall negative on what was an excellent rebuild, then those two are blind.
Game 4 made it as obvious as it could be. Irving is forcing shots with teammates wide open, he often isn't even working hard enough to use a screen before he shoots. Everyone kept saying all season, "We need his scoring for the playoffs". Well ?
Then he goes to the post-presser, makes every excuse, passively-aggressively knocks his team and coach, then after proclaiming himself a "basketball genius" a few days ago, he responds with a "Who Cares?" comment about his horrid shooting, along with "I should have shot 30" as well as "I have to do everything" (which he doesn't, which is the problem with him on this team).
Move on Kyrie. You and your buddy, also a fragile super-ego, Kevin Durant can go the the Knicks and be the stars of Broadway - it would be a perfect marriage, those two in that city for that franchise. And they wouldn't sniff a title.
Meanwhile, Danny needs to keep his young core, along with still-recovering Gordon Hayward and add and subtract others very carefully. The Celts do need some help, an athletic big who rebounds and defends, plus a playmaking point guard who is all about the team. Please don't sell the ranch for Anthony Davis, we already have our championship foundations in place.