Danny has said his plan for this team, and roster composition going forward, is dependent on what happens in the playoffs.
I assume:
-Paul triggers his option for next season. This is the best thing for both player and team. Paul gets an annual salary far, far greater than he'd command on the open market and the team has another year to decide whether #34 fits into their plans beyond the end of next season. Wyc's love aside, I'm not sure it's a given, especially at a salary level much above the midlevel.
-Ray Allen will not be back unless the Celtics win the title. An ESPN report quoted the (ever reliable) "source" that suggested Ray is resigned to the fact the Celtics will not sign him and is considering NYC and MIA as possible final cities for his NBA Career. Figure your own S&Ts based on that. But because we cannot rebuild all at once due to KG's horrid contract, Danny will take the opportunity to use Ray to begin the process.
-No matter how we do in the playoffs, the bench will be cleaned out. Sheed will be traded - at all costs. We'll be done with Davis's immaturity and lack of size, and Sheldon's stone hands. The Nate Robinson experiment will be shuttered. Barring a playoff resurgence (hard to do from the bench) Quis will be sent packing. Danny will look to add long, athletic players, and big strong defenders. If we win the title, I think a couple of these guys will stick around - whoever performed. If not, I think we'll be looking to make up for the athletic decline in our starters with athleticism off the bench.
-Danny will be in on the draft. Possibly buying a pick, possibly looking to deal an asset, e.g. Perk, for a high pick, like he did last year with Tyreke. I don't expect Perk to be a Celtic beyond next season. No need to double his salary for the production he provides.
-Doc will walk away if a wholesale rebuild takes place. He doesn't have the stomach for it. He's intimated as much.