Speaking of Nesmith and a 1st as the principle of a deal. Would it make more sense to offer that to ATL and see if they bite on a Collins trade? I guess it really depends if they intend on matching any contract offer in RFA, but doing that would actually allow the Cs to keep the entire TPE for this offseason.
Don't get me wrong, I'd love to have Barnes here, but it would pretty much require shedding Thompson in order to do stay under the tax (a pre-requisite as far as I'm concerned). I also consider Collins the best player reasonably available with potential to grow into an All-Star.
I think Boston is going to have to give up Smart as a base for a Collins trade.
But just for fun, why not both Barnes and Collins (no TPE required)
Boston - Barnes, Collins
Atlanta - Smart, Langford, Edwards, Whiteside, BOS 21 1st, BOS 23 1st (lotto)
Sacramento - Snell, Nesmith, Huerter
Boston post-trade with 2 open roster spots (need a bench SG at least in buy out market or using TPE)
Starters - Walker, Brown, Tatum, Barnes, Collins
Main Rotation - Teague/Pritchard, G. Williams/Ojeleye, R. Williams, Theis, Thompson
Deep Bench - Green, Waters, Fall
Now that is a team that I think could do some real damage in the post-season and it adds only 4.3 million in salary so avoiding the tax while keeping the entire TPE in tact.