I agree. I am not sure of the extent though. I guess we can start at who the Sox will for sure have on the 2011 Red Sox(and yes I know that anyone can get traded, these are just the most likely to not). Beckett, Lackey, Lester, Buchholz, Dice-K(No trade clause), Youk, Pedroia,Salty and Bard. I think it's safe to say that save Dice-K, all will be part of the 2011 Red Sox.
Now Jacoby, Drew, Papi, and Papelbon fall into the "probably be on the Sox in 2011 group". But Papis' option may not get picked up, and the other 3 are conceivably trade candidates. Albeit the returns on any of them would have to be worth it to the organization to do so.