If Favors is really available, Ainge needs to push every button available to get him. Idk if he's a guy you trade Smart for, I probably wouldn't, but you'd at least consider it. The kid is 23, He's already a really good player and he has the potential to be even more than that. Plus his contract is workable.
The Jazz have a long rumored interest in Bradley, who would be An absolute perfect fit on that team. They also seem to have a glut of bigs, while we have a glut of guards. Favors is the perfect kind of guy you pair with Olynyk. I would go for something like
BOS trades Avery Bradley, Jared Sullinger, Marcus Thornton, the 2016 Dallas 1st and the 2016 Miami 2nd to Utah for Derrick Favors and the 2016 (?) Golden State 1st
He would almost instantly make us the favorites to win the Atlantic and were still set up very well for the future. Just resigning Crowder and possibly Jerebko would be good moves, and anything else we could pull (Tobias Harris) of would be gravy. Still have all the Brooklyn picks, Smart, and all our own picks. We'd be left with..
Smart/Thomas/Rozier
Rozier/Young/Smart/Hunter
Turner/Crowder/Young
Favors/Olynyk/Jerebko/Mickey
Olynyk/Zeller/Favors
You label Favors as a 4 and KO as a 5 but in practice it's the opposite. Favors is a pretty good rim-protector, and I think combined with Mickey's skill-set we could have a more than adequate interior D.
Sorry but Favors is not a really good player. Mediocre work ethic. He gets by utilizing his physical tools.
I have seen a shorter/not as long Sullinger outplay him a few times by sheer work ethic/bbiq.
Sullinger is a very, very good player when he wants to be. He was the projected #1 overall pick after his freshman year. I'm praying he gets in shape and gets his mind straight because he has really high potential if he ever did that much. I saw him go shot for shot and nearly outplay Anthony Davis once with those same skills, and I'm not saying Favors is AD but he is a very good player.
Favors is only 23, on a team friendly long term deal that I think might fit into the Rondo TPE (Correct me if I'm wrong). He finally played for a good coach on a decent team last year and put up good numbers. I think he's one of those guys who's effort is effected by environment, and on this team with this coach he wouldn't have a problem.
I think he has 20-10 with 2 blocks, legit All-Star potential. He's the kinda guy I'd trade some of our slightly above average assets for (Dallas pick, Bradley, Sully etc.).