News broke earlier that Ainge would be moving on and that Stevens would be his successor, and the Celtics have now made it official, Ainge is retiring, and Stevens is the new President of Basketball Operations.
Ainge was the architect of the Celtics rebuild that began when he came to Boston in 2003 and culminated in a title in 2008, the franchises first, and only, since 1986. Ainge then orchestrated the trades of Paul Pierce and Kevin Garnett to Brooklyn in 2013 which turned into a plethora of draft picks, two of which, turning out to be Jayson Tatum and Jaylen Brown, the two cornerstones of the franchise today. The decision comes on the heels of a disappointing season, after reaching the conference finals in three of the previous four seasons. Boston will now turn to Brad Stevens to navigate an offseason that will prove critical for the direction of the franchise for years to come.