The Nats needed a back-up catcher and MI. I am confident that those are things that can clear waivers. Would Thames, Snider, Victorino, or Pence been an offensive upgrade over Morse, Harper, or Werth? Was there an infielder other than Mr. ICanSeeYou that is better than Espinosa, Desmond, or Zimmerman and he might not even be with his 1.7 WAR compared to 3.6 for Desmond, 2.4 for Zimmerman, and 2.0 for Espinosa. Health will help the Nats more than any trade would have when you consider the guys who were moved. The only guy that would have upgraded the Nats is Greinke and the Nats didn't have the ML ready short stop they wanted and the Angels did.