Next up in our Trade Market series, third basemen.  Click here to see our take on the free agent market for the position.  Dan Uggla, Marlins.  Uggla is a second baseman, so we discussed him here.  He last played third base for the '05 Tennessee Smokies, for what it's worth.  If a team acquired him and asked him to switch, he wouldn't have much of a choice. Jorge Cantu, Marlins.  Cantu had an entry in our first basemen post, but he did log 355 innings at the hot...