If this team doesn't turn it on in the playoffs - if they keep looking more like those underperforming Pistons teams of 'Sheed, Rip, and Chauncey, there will be changes.
I don't think they'll trade KG, but that's mostly because he's pretty much an albatros right now.
Ray will be allowed to walk.
Pierce; I'm fully expecting PP to approach Danny for an extension this offseason, and if the team keeps sucking ass he may well get rebuffed. "Prove your leadership next year and we'll talk." Unless things get a lot better, they aren't committing new salary beyond the summer of 2012 for ANYONE, including the face of the franchise.
Rondo's not going anywhere. Perk, maybe. Perk's going to want an extention, and I've become less and less enamored of him as the year's gone along. The team's rebounding simply sucks, and you can't blow off Perk's fairly pedestrian rebounding. It just seems like he SHOULD be more dominant on the glass.
'Sheed... they might have to do a Perk + 'Sheed package to get rid of 'Sheed, but that might be enough to get a decent player in return. Sign Camby for two years to fill in at the 5 spot.
EDIT: I should say, too, it's not 100% about whether they lose in the first round or the second. If they struggle to get by the Raptors, then roll over against Cleveland and lose in four or five games, the team's going to be broken up. DA's all about the Championships, and it keeps looking more and more like it's the foundation of the team that's the problem. You aren't keeping the core together, adding one free agent, and starting plans for the victory parade.
EDIT II: I find that I'm assuming this team rolls over in the playoffs. Sad that I've got zero confidence in this group being ABLE to turn things on