I see where you're coming from, and I would be inclined to agree, except for this:
We need a 1C and a 1LD (for lack of a better term). I'm finally at a point where I'm ready to deal ONE piece of our "core" - if so, would you rather deal that piece for the C or the LD? Personally, I think we can "solidify the D" without having to lose a member of the "core". For the sake of argument, let's say Berglund is the one to go - I'd much rather deal him for Stastny, and then use Dags/picks/prospects to get the LD (Tallinder, Klesla, etc). If we use the "core" player to get a high-profile LD (Giordano, Yandle, etc.), then we're not going to have a good enough package to get the 1C. Do you see what I mean?
Fun debate, though.