Robinson signed. The apology question is something else.

Mitchell Robinson came to Boston this summer on a three-year deal, which made him one of the more straightforward acquisitions of a complicated offseason. What was less straightforward: Robinson reportedly wanted an apology from Joe Mazzulla before he left New York. That detail has been sitting in the background of this roster build, and it's worth noting plainly. Robinson is here. Whatever that conversation looked like, it happened or didn't, and he's a Celtic now.

It's a small thing, maybe. Robinson is a rim-running center who won a title with the Knicks and brings exactly the kind of physical presence Boston needed alongside Neemias Queta. The basketball fit is real. But this offseason has had a recurring texture to it — Jaylen Brown calling the trade communication a "crazy transition," Paul George absorbing public backlash before he'd played a minute, and now a new center who reportedly needed something resolved before he walked in the door. None of these are crises. Together they sketch a front office that has moved fast and left some interpersonal cleanup behind it.

Mazzulla is the constant in all of it. He's the one who has to stand in front of this group when camp gets going in earnest, and he's the one who needs Robinson engaged and Queta comfortable and George bought in — all at once, while Tatum's availability remains unresolved. The roster construction is done. The harder work is now his.