A Lot to chew on in this post.
Are you saying the lack of mid-tier prospects in our system makes it difficult to trade because the Sox don't want to move upper level prospects, or are you saying that other teams would prefer to have mid level prospect to our top prospects? I would think that most teams would want our top guys.
It's interesting that you mention Buch and then later discuss trading a top prospect for Volquez. See, to me, Vloquez is another Buch. The differences being Buch has mental lapses while Volquez has psychotic breaks.
Buch seems to have a better record of demonstrating elite stuff for decent stints.
I would not trade a top prospect for Volquez. The return is, in total, minimal. And that is just not enough to be worthwhile in my book.
Just my opinions, though.