Forget the box score—this is where the Celtics are actually winning

Sam Hauser, Xavier Tillman, Jayson Tatum, Joe Mazzulla, and Chris Boucher. | John Nacion/GettyImages | Brian Fluharty/GettyImages | Mark Blinch/GettyImages | Rich Storry/GettyImagesBOSTON — The Boston Celtics are imperfect. Rebounding woes plagued the early portion of the season. Three-point slumps have been unshakable. Clutch-time performances haven’t met the standard. The team is new. Those types of bumps could have been predicted. Integrating new pieces and new styles onto the court isn’t easy.

So, for an organization that focuses on what it can control, building relationships away from the hardwood has always been crucial.

From the very start of the season, this goal was clear.

Chris…