WALTHAM — Celtics president of basketball operations Danny Ainge said Saturday an “accumulation of lots of things” led to the departure of Ray Allen to the Miami Heat.

“I don’t feel like we lost Ray, I feel like Ray left us to go to Miami,” Ainge said. “We appreciate all that Ray’s done, all that him and [wife] Shannon have done in our community. We tried to get Ray back, he chose to go to Miami.