Since there is a lot going on, I will go ahead and break this down step-by-step:
Cavs trade Levert, Niang, and SRP to the Pistons for Stewart; Cavs sign Okoro
Cavs trade Allen and Merrill to the Griz for Vince, Clarke, Konchar, and two FRPs
TWolves trade NAW to the Griz for Aldama and a FRP
Griz trade Merrill, Ziaire, Kennard, and a FRP to the Nets for Cam Johnson
Cavs trade Don to the TWolves for KAT, Aldama, Garza, and a FRP
Cavs sign Okoro and Holiday; Griz sign Harris; TWolves sign Burks, Anderson, Stevens, and Tillman
The Cavs decide to move on from Mitchell due to stalled extension talks. They go get a haul for him from a TWolves team that might look for changes. They also move on from Allen, and get a really solid team to develop around Garland, Mobley, and KAT. I was unable to add another team to offload some of the guys they got for more experienced depth.
Cavs Rotation:
PG: Garland - Holiday
SG: Strus - Konchar
SF: Okoro - Vince
PF: Mobley - Clarke - Aldama
C: KAT - Stew - Garza
The TWolves decide to shake things up and land a superstar in Mitchell. This gives them the best back court in the league by far. They also allow Reid to develop more as a starter and get some solid depth that fits their culture.
TWolves Rotation:
PG: Don - Conley
SG: Edwards - Burks
SF: McDaniels - Stevens
PF: Reid - Anderson
C: Gobert - Tillman
The Griz load up for a season in which, if healthy, they should be major contenders. Getting back their key players from last season, and pairing them with Allen, Johnson, NAW, and Harris, will make them one of the deepest teams in the league.
Griz Rotation:
PG: Ja - NAW - Rose
SG: Smart - Harris
SF: Bane - GG
PF: JJJ - Johnson - Laravia
C: Allen - #39 - #58
I won't include any breakdown for the Pistons or Nets as these moves do not affect them very much.