I like to break in down with talent in verses talent out comparing roles/positions/contracts.
The big one.
Hayward verses Bradley. As much as I like Bradley this is a big upgrade. Maybe some think it's debatable if Hayward is a max player, but it's a much better contract than what Bradley will get next offseason and he might have left for nothing.
Morris verses Olynyk. Morris is more consistent and dependable, and that in itself is an upgrade. Morris is on a much better contract than what KO is now gettting paid.
Baynes verses A Johnson. I liked Johnson but he seemed broken down even though younger than Baynes. Baynes is a rock solid backup C and adds a bit of toughness, and on a very good contract.
Zizic verses Zeller. Zeller may be the better player now, but it doesn't mean a whole lot when you don't play much. As a 3rd string center I'd rather take a chance on Zizic's upside and cheap contract.
Tatum verses Green. Green was a scoring spark on occasions off the bench, and even started some playoff games. Tatum can fill at least that role in his rookie year.
Theis verses JJ. Theis is a complete unknown to me. Jonas was a very useful player at times for us. If Theis could that which is a huge question mark I'll be happy. Who knows though Larkin may make the team over him.
Other developmental players
Yabu, Semi, and Nadar I like better than Mickey, Jackson, and Young. Too bad we didn't get anything out of those 3. It will be interesting to see if any of them make it somewhere else in the league.
Overall I'd have to give this off-season at least a B+. Given the cap situation being less than we though Ainge did a very good job.
That's not factoring in possible improvements in Brown, Smart, and Rozier while also keeping Crowder.
My only real slight worry is Horford is another year into his 30s but I'll think he will be fine especially considering he won't be relied upon as a big scoring threat. Just keep doing the all around things.
My other slight worry is Thomas had such a magical year, and really carried this team. I wouldn't be surprised if he took a little step back, but with Hayward on board they can share the number one option.