As promised, here is the third edition of my delightfully time-consuming (for myself, at least) miniseries on just who might be willing to buy what the D-Backs are selling at the trade deadline this summer.  Although this might be more adequately called the Jon Garland and Doug Davis Trade Market, I personally believe that the D-Backs are more inclined to extend DD for two years, which DD seems to be open to, and which would seem to make sense for the team.  After all, DD is a s...