Yep, that's pretty much what I'd like us to do as well. Fultz in, IT out.
The thing is, if we trade IT what can we get for him?
edit
Just read the article. No way we can trade Thomas for George/Butler, imo.
(...) the Celtics could likely exchange Thomas for an All-Star level player (...) The best option is to try and swap Thomas for fellow pending-free agent Paul George or someone like Jimmy Butler (...)
That's a pipe dream.