Welcome back, RotoBallers, to another edition of the waiver ranking article. The fantasy baseball season has about eight weeks left, and it's time to build those rosters for the championship run. Today, we will review our mid-week waiver rankings for Week 20 -- August 5 through August 11 -- to help you stay on top of the waiver wire, especially in leagues that allow daily moves. Top prospects such as Coby Mayo, Darren McCaughan, and Adrian Del Castillo were recently promoted to the big leagues. ...