As a Celtics fan I hope this works out and you guys get Crowder. I think it's fair to say that the Jazz fans deserve something in return for the Hayward loss. I want to give you guys an idea of what you are getting with Jae, aside from the numbers.
Crowder built his reputation in Boston with tenacious defense and effort. He consistently improved his shot over the past few years and had an awesome regular season. The only concern we have in Boston is that he seemed to lose some of his edge this year. Sometimes it felt like he settled for jumpers and didn't attack closeouts aggressively after the All-Star break. Jae has never been a great at driving to the hoop but he was certainly more opportunistic prior to this season. He had a 26 game stretch from February-March where he only shot 32% from 3. His shooting was also wildly inconsistent in the playoffs. The numbers ultimately looked okay but he only shot 34% from 3 in the postseason, with two of his better shooting performances coming in garbage time of blowout losses to the Cavs.
All in all Jae Crowder would an excellent addition to help you with the grind of an 82 game regular season. The advanced metrics always show that we were better with him on the court regardless of his inconsistent shooting. Part of me is worried that his contract situation is bothering him though. He is worth so much more than 6 million and his opportunity to get paid is a long way away. With that being said, if you get a motivated Crowder then I'm sure every Jazz fan will fall in love with his game. You can pencil in 13-15 PPG on relatively low volume to go along with great team defense. Gobert's rim protection should allow him to play even more aggressively on the perimeter.