The only Pacer that really interests me would almost certainly cost Brown to acquire and I don't think that is the right move even though I really do like Sabonis.
Sabonis is really good but on a team as lethargic as the C’s with little off ball movement in their gameplan and below average shooting in their personnel, he’s gonna look pretty pedestrian here methinks. Brown will have more impact here than Sabonis
Maybe, but Sabonis is an excellent passer. Not as good as his dad, but probably the 2nd best passing true big man (i.e. no Giannis) in the game today (obviously Jokic is by far the best). And given Sabonis and Turner works ok, I do think he'd work ok with Williams. Trading Brown for him seems more like a lateral move though, which is why I wouldn't do it. If there was some way to get him without Brown, that would be awesome, or if there was a trade out there to replace Brown's offense, then maybe you do Brown for Sabonis (like if the C's could get McCollum for draft picks, then maybe you do Brown for Sabonis to balance the roster).
To be clear, I don't think this has any shot of realistically happening, but if Boston could pull something like this off, I do think it would elevate the ceiling of the team a great deal.
Boston - Sabonis, McCollum, Snell
Indiana - Brown, McLemore
Portland - Smart, Bitadze, Nesmith, Pritchard, BOS 1st's (22, 24 (top 10), and maybe you throw in a lotto protected 26 or a swap at some point)
So post-trade Boston would have an open roster spot and would look like this
Starters - Schroder, McCollum, Tatum, Sabonis, R. Williams
Playoff Rotation - Richardson, Horford, G. Williams, VET PG
Deep Bench - Snell, Langford, Freedom
Suits - Fernando, Bol Bol, Dozier
You just add a vet PG for the bench and I think that team would have a much better shot at truly competing both this year and at least over the next couple. So I think you could trade Brown for Sabonis, but only if you can acquire a guard scorer elsewhere. It doesn't make sense though to just swap Brown for Sabonis without the 2nd part of the trade.