If the Celtics were to trade for Doncic, IMO, it would be structured (something) like this:
Celtics: Doncic
Mavs: Brown, Smart, Celtics 2024 - Round 1 Pick, Celtics 2026 - Round 1 Pick, Celtics 2029 - Round 1 Pick Swap
Celtics: Bertans
Mavs: Williams (S + T)
Boston Celtics
Depth Chart
PG White, Prichard
SG Doncic, Brogdon
SF Tatum, Gallinari, Hauser
PF Horford, Muscala, Bertans
C Williams III, Kornet
Would I trade for Doncic? No I wouldn't.
IMO, Doncic and Tatum would have issues operating in the same offensive zones, not to mention that Dallas has allowed Doncic to become Harden 2.0, in terms of his terrible off-ball movement and lazy defensive intensity.