I don't think TT deserves as much hate as he generally gets online. He competes hard, grabs board, finishes over smaller guys. Seems like he's pretty much doing what you would have expected him to do when they signed him.
He hasn't made a positive impact defensively and he has been too focused on trying to score inside instead of passing, both of which are somewhat disappointing given how he had played, at least at times, on the Cavs.
You could chalk up those issues to a lack of familiarity with the Celts and the system. Always good to remember that none of these guys had training camp this year and Thompson, like Teague, was off for like 9 months due to COVID.
At this point the Celts have minutes for 2 centers and 3 guys who deserve time, including TT. Rob is too good to trade. I like Theis, but he may be hard to afford for the Celts this summer. Regardless, I hope with Thompson or Theis gets moved at the deadline just to clean up the rotation.