OK, so some of you are going to really not like this trade idea, but I am bored, and I think it makes a lot of sense, so I figured I would throw it out there anyways.
Boston sends Perk and Scal to Houston for Battier and Scola.
Why for Houston? They get a young, inexpensive Center who will fit in very nicely next to Landry, and be a very nice centerpiece of their defense going forward. They give up a couple nice players, but Battier plays the same position as their big FA pickup, and Scola is simply not as good as Perk.
Why for Boston? They get Battier, who would really round out their rotation nicely. He is the perfect backup to Pierce, who could help to extend his career, and he can also play some PF, like Posey did a couple of years ago. And they get Scola to help them maintain a very deep front-court. It is a step-down from Perk, but now that they have Wallace and Davis wrapped up, Perk is a lot more expendable, if they can get a player as good as Battier in return.
The other reason for Boston is that Perk is up for a new contract at the end of next year, and I think it is very likely he will go elsewhere for significantly more money. He is a bargain at less than $5 million, but he won't be any more, once teams start throwing $8-10 million (or more) at him. And given his injury history, the C's might look to sell high on him, now that they have someone else capable of playing Center (Wallace), and a very capable backup (BBD) locked up.