Lets say hypothetically any of these players were on the table for Ainge if the deal was right. Based on contract/years left/and package for them which deal did Danny drop the ball on? Personally I feel all three were possibilities for us if Danny wanted them:
Boogie Cousins
Proposed Deal: Crowder, Bradley (or Smart), 2019 Memphis 1st round pick, couple second rounders
Current Contract: $18 mil - Free agent in 2018
* assumed deal by me in comparison to what Sacramento received from Nola
** would have had him for 2017 playoff run
Jimmy Butler
Proposed Deal: #3 in this years draft straight up
Current Contract: $19 mil a year - Player option in 2019
*assumed deal based on what Chicago was supposedly asking
Paul George
Proposed Deal: Crowder, Bradley (or smart), Lakers/kings pick, additional first round pick
Current Contract: $20 mil - player option in 2018
*assumed deal based on what was being reported
Fultz
Traded for the #3 and Lakers/Kings first round pick
To me the no brainer answer is JB, perennial allstar, top 15 player in the NBA, on what some may consider a 'bargain contract' by today's NBA standard. Considering Jrue Holiday just got $25 mil a year, taking on Butler for a lottery pick was easily the biggest miss for Ainge.
I also feel he is the best fit in a Stevens system, adding him to a 53 win team (and also possibly Hayward) while Cleveland is in a clear downward spiral to me is the biggest miss in Ainge's tenure this far.
I also feel his presence on the team increases the chances Hayward signs here.