I think something based around Bradley for Parker makes a ton of sense, especially with Middleton coming back.
Mil - Bradley, Rozier, and the 2019 Memphis pick
Bos - Parker, Beasley
BOS -
PG: IT, Jackson
SG: Smart, Green
SF: Crowder, Brown
PF: Parker, KO/JJ
C: Horford, Amir
MIL -
PG: Rozier, Brogdon, Delly
SG: Bradley, Vaughn
SF: Middleton, Snell
PF: Ante, Teletovic
C: Henson, Monroe, Plumlee
That puts Middleton and Ante at their more natural forward positions, and it gives them a dangerous swing/forward lineup of Bradley, Middleton, and Ante at that crucial defensive area. It also adds quality shooting for them, which they desperately need in their starting lineup.
For us, I think this makes a ton of sense if we plan on keeping the Brooklyn pick and drafting a Fultz or Ball. It also moves Horford back to his natural position of center and gives us another significant scorer to go to at the end of games.
If we don't trade for a Boogie type, then I'd love for something like this to go down. And I ultimately think it makes sense for both sides if Bradley would be willing to re-up with Milwaukee long-term.