Astros definitely need bullpen help and its go time (win now). Why spend money and give a draft pick on a aging closer when they can trade for a cheap, young and controllable closer. Corey Knebel for: Forrest Whitley - finally a legitimate TOR prospect Yordan Alvarez - upside; lefthanded bat Corbin Martin - reminds me of Knebel but has a chance as a starter Elian Rodriguez - lottery ticket Hate to give up Knebel but relievers are volatile and he is a perfect sell high candidate. Continue to build for the future.