Grant Williams is not starter material and should not be paid as a starter either.
He's fifth in minutes per game so far this season. It's true that he mostly hasn't started (though he's got 16 starts out of 44). So while he might not be a "starter", he's playing starter's minutes.
People keep saying he is “versatile” but that doesn’t necessarily mean he’s good.
Not sure why you put it in quotes. He guards up or down. Defense is a team game, and he is a consummate team defender.
He’s not a good defender or rebounder.
Can't agree about your defensive evaluation, coach.
As for rebounding, his own numbers are the pits - but the team numbers are not, when he's on the floor. I note with interest that Boston is currently #1 in the league at Defensive Rebounding (.781), with Grant playing starter minutes. The team is currently 9th in defense for the season (pts/possession, a couple of different algorithms), after a horrendous start - those bad November numbers are included. By the way, Boston improved that stat steadily even before Rob came back.
Just recalling something Tommy said about his early days. Russ told him not to worry about rebounding, just box out your man and I'll get the ball. It must have been truly amazing to have Bill Russell as a teammate.
He can’t really dribble or pass.
He's looked pretty good at his newfound dribbling skills this season, though, and the coaching staff appear to be encouraging him to attack closeouts aggressively; not surprising, since he's been one of the best finishers on the team. I'm sure that the staff appreciate his two-season improvement in getting turnovers down even more.
He. A shoot the three. How much is that worth though?
It's invaluable, I'd say. You can't leave him, which opens gaping holes in the defense for Tatum, Brown, Brogdon, White, and Smart to operate.
If Cs are starting him going forward, they are going to get destroyed on the boards.
And yet here we are. Again, Boston is #1 in the league in defensive rebounding. The opposite, I'd say, of "getting destroyed".