I am in favor of Horford starting or at least being part of the most used line up (which probably is the same thing but not necessarily). I don't mind some use of 1-big combinations throughout the course of the game, I think that is inevitable, even if we end up getting another solid big.
I concede that this means playing Brissett at the Swing/PF, perhaps not his natural position, and that Kornet or Gabriel or Queta will get some minutes in the regular season. But if Brissett is out there as the Swing/PF, it allows you to keep Tatum at SF, let Tatum focus on scoring and playmaking, let Brissett focus on defending a PF and rebounding. Let Brissett be the one playing out of position, keep Tatum at SF. I feel that Brissett is going to be in the regular rotation in any case.
The complaint seems to be that it is less minutes for Pritchard and more minutes for Kornet/Gabriel/Queta. This is fair, but I don't feel this is reason enough to dictate the rotation of our top 5-7. If there are 450 players in the NBA, Pritchard is what, #350? And our end of the bench bigs more like 400-450? This is not where you win or lose games. Just hold down the fort until we find another decent big to add to the bench.
You make an interesting point. If Horford starts, and Brissett comes off the bench first for him... then Tatum stays at SF.
Horford then comes in later for Porzingis. Maybe Tatum plays 10mins at PF, but he'd play 25mins at SF.
If you wanted to expand where I was going with that, you could squeeze down Pritchard / Hauser into smaller roles and then give Kornet some time at center to make it work. Otherwise I think you'd either need to run Brissett 25-30 minutes or Tatum has to play power forward.
PG -- Jrue Holiday (32), Payton Pritchard (16)
SG -- Jaylen Brown (16), Derrick White (32)
SF -- Jayson Tatum (14), Jaylen Brown (18), Sam Hauser (16)
PF -- Al Horford (10), Jayson Tatum (20), Oshae Brissett (18)
C -- Kristaps Porzingis (30), Al Horford (18)
becomes
PG -- Jrue Holiday (32), Derrick White (4), Payton Pritchard (12)
SG -- Jaylen Brown (20), Derrick White (28)
SF -- Jayson Tatum (22), Jaylen Brown (14), Sam Hauser (12)
PF -- Al Horford (18), Jayson Tatum (12), Oshae Brissett (18)
C -- Kristaps Porzingis (30), Al Horford (10), Luke Kornet (8 )
Pretty big rotation but that gets closer to maximizing everyone. In the playoffs you probably down-select to something like:
PG -- Jrue Holiday (38), Derrick White (10)
SG -- Jaylen Brown (20), Derrick White (28)
SF -- Jayson Tatum (22), Jaylen Brown (18), Sam Hauser (8 ) <--- or you could move these 8 minutes to Pritchard and transfer more SF minutes to Brown
PF -- Al Horford (18), Jayson Tatum (16), Oshae Brissett (14)
C -- Kristaps Porzingis (34), Al Horford (14)