How?
And don't tell me he should do stuff that amounts to stopping the ball, forcing up shots, overdribbling, screaming and banging his chest. We already have plenty of dudes doing those things.
He got 27 minutes and 13 shots. You don't "take over" anything with those kinds of numbers. I mean it's not exactly news that as a big, Lauri mostly depends on his guards (and by extension, his coach) to get him the ball in his spots. And when he does get it, good & efficient things happen.
Meanwhile, over at Twitter McCade Pearson is running a smear campaign with the premise that Lauri should be shooting less and passing more:
Go figure. That's just insanely stupid. Nothing wrong with facilitating if your teammates are better scoring options than you, but Lauri is basically never in that position on this team. And a high unassisted % isn't some holy grail in today's NBA. It may just as well speak of low efficiency scoring.
Anyway, IMO Markkanen is just a symptom here – people are frustrated about the season and don't know what Ainge is even trying to do, so the anger gets spread around.