No. Why is everyone trying to trade our 3rd and 4th best players ( Rob and Marcus)? We become much worse defensively.
Since when are Smart and Williams Boston's 3rd and 4th best players. Horford is still clearly a better player than either of them (and is significantly more valuable as a player). I think you could pretty reasonably argue that Fournier is better than both of them as well. Whereas, Brogdon would pretty clearly be the 3rd best player on the Celtics as he is significantly better than either Smart or Williams, he is signed for longer, and is just a better fit given his good shooter, passing, etc. while still playing + defense.
Boston should do this trade every single day of the week. Frankly, they should try to get Turner back as well who Indy might not want to pay anyway
Brogdon, Turner for Smart, Thompson, R. Williams, Langford
Boston
PG - Brogdon, Pritchard, Edwards
SG - Brown, Fournier
SF - Tatum, Nesmith, Ojeleye
PF - Horford, Parker, G. Williams
C - Turner, Brown, Kornet
A few minutes in, you bring in Fournier for Horford or Turner and go a bit smaller, but I like the size to start.