Before Washington pulled it together I thought something like this would have made sense for all 3 teams. I still think that is the type of trade Boston should be looking at.
BOS - Wall, Gortat, Nelson
DEN - Thomas, Johnson, Smith
WAS - Mudiay, Hernangomez, Smart, Jerekbo
minor draft picks or lesser players if need be could be included, but no major picks
Obviously with Washington turning it around, I can't see them moving on from Wall and rebuilding (which is what that trade would be for them), but that sort of framework made sense to me at the time and still does i.e. a 3 team trade where Boston upgrades at the point, one team rebuilds, and another team looks to go to the next step.