The 2011, 2014, 2015 and 2019 NBA champions all won titles without this happening (KL was available for basically anyone who wanted to outbid a DeRozan package). That's 4 of the past 10 titles.It really just come down to this: GMs don't build championship teams any more. Players do. The Celtics need a third superstar and the only path to them getting him is for Tatum and Brown to convince him to force a trade to the Celtics for some flotsam and jetsam and a bunch of future first round picks.
Any other moves are just shuffling deck chairs around.
If it weren't for Ray Allen's miracle 3 and Draymond's groin shot, we'd be talking 6 of the last 10.
I don't say this bluntly usually, but your post is dumb.