They can do that without Butler, instead trying to make a minor move for a contributor like Suns forward P.J. Tucker.
Boston has expressed deep interest in Tucker ahead of the deadline, a source said. Get Tucker, and the Celtics can add depth without giving up on a potential No. 1 pick. And there is cap space available this summer to sign a player in free agency. Without trading for Butler, Boston could keep the pick and get a name player this summer.