Bernardoni at Celticshub seems close:
barring a block buster...
Baynes
Horford
Hauward
Brown
Irving
Tatum
Smart (yes they might)
Rozier (barring a trade)
Theis
Semi
Yabusele
This year's First rounder
Bird
Allen
Veteran minimum
Trading into the lottery would be so much fun, but, this introduces a financial management theme. Tatum + Brown+ a top 6 or 7 player this year = causing issues with future ends to rookie deals, but also, tightens cap situation for this year and next which needs managing.
I offer the following trip into Ainge's consciousness.
Go for it now....add one of the available/disgruntled stars now, they have the assets to do it and turn this team loose on the NBA
Irving
Brown
Hayward
Leonard
Horford
or
Irving
Brown
Hayward
KAT
Horford
Ultimately, with these lineups, you can't afford a bench beyond...what we have now and a vet min, so, let's go get'em before we all get old.
Building for the future is fine, but, what the he&* you standing around for anyway?!
You trying to win a most draft picks contest or a title?
GSW are going to cough one of these years and you might as well be the team they choke on.
The clincher is, the NBA is designed to make those lineups end within 24 to 36 months...and they will, so, go for it.