Toronto is flirting with the 1st apron (just $2M away) and only has 13 guys on their roster. By doing this swap (Poeltl and Barrett for Duren), Toronto not only significantly upgrades their starting center, but they also clear up ~$10M in space to add the final vet minimum deals. Toronto also pays an extra 1st and a swap to get this done.
For Detroit, they are in a spot where Duren has to be traded. They are left with not many options other than constructing a sign and trade. RJ Barrett is a high quality wing who slides in next to Cade and Ausar and becomes the #2 option. Myles Turner is the exact type of stretch big this team needs with Ausar in the starting 5, and AJ Green is used here as a swap with Duncan Robinson to make the money work.
Cade, Barrett, Ausar, Collins, Turner // Jenkins, Joe, AJ Green, Javonte Green, Reed, Okorie, Huerter, Prince
For Milwaukee, they effectively add Ron Holland and their 2037 2nd pick for a few slight downgrades. They swap their backup Center (Turner for Poeltl) and swap their sharp shooting wing (AJ Green for Robinson).