What is their best move at that point? Since they'd pretty much already be out of the playoff race at that point, should they: a) blow it all up and try and bring in picks and younger pieces, or b) still keep it together since they have no incentive to blow it up or be bad?
They have no chance of competing now, and they have no potential to improve as a team in the short term (i.e next 2-3 seasons).
The way I see it, the only thing that makes any sense for that team is to break it up completely and start from scratch - try to acquire assets that can help them in the long term.
I'd start by trading away anybody on the team who can actually offer some form of production to another team - Lopez, Johnson, Young, Bargnani. I'd try to trade those guys out to teams with playoff aspirations, hope that you can get young prospects and / or future first round picks for Lopez and Young. Try to find a veteran team who will give you a first for Johnson, if not keep him and let his contact expire after this season.
Basically just sell any guy you have who is over 25 and can play, and try to get a combination of picks, prospects and cap relief in return.
Their present is non-existent, so may as well put yourself in a position to build a future.
I know rebuilding sucks in a way because we have their picks, and so it would burn for them knowing that going into a rebuild basically gifts Boston a goldmine...but at the same time it's what they MUST do if they want to have any hope of salvaging the next 2-3 years. They can try to win some games just to make the picks worse out of spite, but in the long term they are only hurting themselves.
What is our best move at that point? With the Nets picked firmly entrenched in a race for a bottom three seed, do we act proactively and try and utilize that pick to trade for a disgruntled star, or do we keep it until this summer when we know exactly when the pick will be?
I would keep the picks.
If you can get a pick in the top 5, then it's a valuable thing to have, so I'd hold on to it for flexibility.
If a legit star (who can really help the team take the next step) becomes available, then I'd make the pick available. If not then I wouldn't try to force anything - no shame in waiting for the draft and, and drafting a top 5 prospect.