This has been Brad Stevens week around the Boston Celtics after his lengthy end-of-season press conference, mostly because (a) the Jaylen Brown situation dominated the headlines even though it’s probably much ado about nothing , and (b) Stevens was clearly angry about how the team ended and he promised changes in the aftermath.  But that's not all he said. Now that the dust has settled, here are a few other things from his media availability that were important and should probably be highlighted.  Jayson Tatum missing Game 7 “You probably could see it at the end of Game 6, we thought that it would dissipate and be okay the next day. He didn't do very much on Friday, just rested and then came in on Saturday morning and tried to do a workout. I watched it, and clearly didn't feel right. It's not like a long, long-term concern, but it certainly didn't look right when he was working out, and didn't feel right. So it made sense to be smart about that.…