If you compare both rosters without Hayward the Jazz are better IMO.
Gobert would be the best player on either team. Jazz have 2 quality big men (Gobert, Favors), Celtics have 1 (Horford). Jazz have 3 wings that are better than Crowder (Ingles, Hood and Johnson). Exum is still intriguing as a young prospect and they have another guard they got in the lottery. They also have Rubio, who is a really solid point guard.
The Celtics best 3 guards could all be gone by next year (Thomas, Bradley, Smart).
Again, Brown and Tatum and there picks next year are all intriguing, but they're years away from being significant difference makers.