December 15th this can't happen till, let me start there.
1st trade is a sign and trade. It's an all in this year and also for future years. You do a sign and trade with the Hornets. Celtics send Grant Williams, Justin Jackson and Danilo Gallinari a 2nd round pick for a S&T Miles Bridges. Yes, he's got a bad past and getting out of trouble but the talent is there and a change of scenery could be needed. Bridges also would be a great piece to put next to Tatum and Brown and create a three headed monster. Bridges isn't going to get a max deal but isn't going to come without a price. So if you did 4 years for 60 million or 4 years for 80 million, I would assume where he'll fall now cause of the trouble. Why do you do this trade, a starting line up next year of Williams, Tatum, Bridges, Brown, Smart, would be terrifying for the league. Also this year if he is able to play, he's off the bench or moving Horford to the bench since it's after the time Williams should be back by.
2nd trade isn't a major splash but helpful. Noah Vonleh, Luke Kornet and Payton Pritchard for Jarred Vanderbilt. He' gives us some more size at the power forward and can play the small. Pritchard is the odd man out in the backcourt, plus with drafting JD Davison this year makes Pritchard easier to let go. JD has a higher ceiling I feel personally. Vanderbilt also has this year and next under contract.
Free agent signing, you bring back a fan favorite who is playing amazing overseas right now. Tacko Fall you bring in on a 1 or 2 year deal. The fans love it plus he seems to finally develop more into a solid rotation piece. With Kornet and Vonleh traded Fall gives us the size we need.
I'm putting the roster out as Miles Bridges isn't going to serve suspension or for long at least. They'd have to sign another veteran or two to round off the roster but these 3 moves make the roster even more scary. We also have the two trade exceptions to use.
Starting Five
Center - Williams III
Power Forward - Tatum
Small Forward - Bridges
Shooting Guard - Brown
Point Guard - Smart
Backup Five
Center - Fall
Power Forward - Horford
Small Forward - Hauser
Shooting Guard - White
Point Guard - Brogdon
Power Forward - Griffin
Forward - Vanderbilt
TW Deals
Power Forward - Kabengele
Point Guard - Davison