Danny's got only 2 days until Randolph's contract becomes guaranteed. The most likely move, because it's the easiest, will be letting Shav go, just like they did with T-Will, but Danny could try to pull a trade to either keep Shav, or to get some return for him.
Three ideas that work on the trade machine, although that doesn't mean they can be done, as you need at least two teams to make a deal. I don't think these are lopsided trades, but I'm wearing green glasses.
Idea 1: Keep Shav, trade Humphries to the Sixers.
This is also a simple move, where Humphries would go to the Sixers, and, in return, the Celtics would get a TPE and Philly's 2014 second round pick. The Sixers get to the salary floor, and while sending a valuable 2nd rounder, they could get something better at the trade deadline for Humphries. The Cs reduce their salaries and gain some flexibility if they can make further moves to keep the salary reduction.
Idea 2: Make a 2 for 1 with the Sixers
This could be done before Shav's contract becomes guaranteed, or after that. Celtics send Crawford and Shav to the Sixers, and get Kwame Brown in return. This trade sets roster at 15, doesn't reduce the salary totals, but Celtics would have Brown, Bogans and Humphries as expiring contracts to use at the trade deadline. The Sixers fill 2 roster spots for Brown's salary, and they can keep their tanking plan, or, in case the trade was made before August 1st, they could also let Shav go.
A variation of this idea would be asking the Sixers for a future protected 2nd rounder and not taking Kwame's salary back, freeing both salary and an additional roster spot.
Idea 3: (Not so crazy) bring back Perk trade
Bass and Perk have 2 years in their contracts. Perk is overpaid, and the Thunder probably would love to get rid of his terrible contract. We don't know, but Brandon's market value right now doesn't seem very high. But the Thunder could use Bass and Ibaka against most of the teams, only Indiana, Chicago in the East and Memphis, Houston in the West have BIG frontcourts and OKC could use Collison/Thabeet/Adams against those teams. Shav could be let go, and Crawford could help at some point with his awkward yet productive offense. To take charge of Perk's humongous contract, the Cs need some compensation. PJ3 is an unproven prospect, who doesn't affect OKC's rotation, and they also should send the Dallas 2014 first round pick (top 20 protected until 2018, when it becomes unprotected).
It's unlikely these trades happen, because there's the less complicated route of just letting Shav go. That would allow the Celtics to showcase the players they want to trade, increasing their return. But I'd love to add some more young players to develop/showcase/take a chance on.
Bonus: let's combine them.
First combo: ideas 1 and 2 to free 3 roster spots. Send Humphries+Shav+Crawford to the Sixers for the 2014 second rounder and a 15M TPE. Then, sign Luke Babbit and Tyrus Thomas for the minimum salary.
Second combo: ideas 1 and 3 to free 2 roster spot. Then sign Tyrus Thomas for the min.
We'll know in a couple of days.