Zach Day today in earning the win, pitched 5 innings, allowed 5 hits, gave up 1 run (earned), walked 1 and had 4 strike outs. I would say the signs are good regarding Zach Day.
Now the question is, if he continues to improve, do the Nats still trade him, or put him in the 5th starter spot and trade one of the pitchers on the current active roster?