I will reiterate that Danny Ainge is getting WAY too much of a pass for trading for a guy with a pretty serious, and known, knee problem.
Will be right back, just need to check on current status of the sky!
Let me just throw this scenario out for you:
Boston, with Kyrie out for the season due to a pre-existing injury, gets bounced in the 1st round of the playoffs.
Cleveland, with players acquired from the Kyrie trade (albeit following a second trade), makes the NBA Finals.
Cleveland then lands a top-5 pick via the BK 18 pick acquired in the Kyrie trade, and nets a young player that eventually becomes a multiple time All Star.
Is the above mentioned scenario really "sky is falling" likelihood? I think that has a reasonable chance of occurring. If that happens, is Boston not a clear loser in the Kyrie trade?
Right now the odds of the Nets' pick landing top 3 is only 15%.
Given the statistics about the history of top 7 picks turning into multiple time All-Stars, it doesn't actually seem like there's a very significant chance of the scenario you outline occurring.
I am 100% OK with the notion that the Celts traded, effectively, BRK 18 and Jae Crowder for Kyrie Irving, even though he won't be able to participate in the playoffs for year 1.
The first year with Kyrie went pretty well. I'm feeling pretty confident about how he'll do next year with Hayward back and Brown / Tatum continuing to mature. I am confident he'll want to re-sign here as well.
Meanwhile, that BRK may very well turn into a player who is (a) a long term project and (b) not a perennial All-Star. Isaiah Thomas, sadly, may never be an All-Star again, given how he's looked in trying to come back from the hip injury.