He's only had 22 starts and none this year in the bigs. I wouldn't give up on that yet.
But with the Nats... his best chance to break with the club next year is out of the pen. His stuff is Nasty, either as a starter or out of the pen. He certainly looks like a Major Leaguer and not a AAAA guy. 
I'm being honest with you...he ranks very low on the totem poll, there is nothing wrong with being a reliever.
For the record, as much as I like you...If your daughter was married to Mike Bacsik, I just couldn't root him on. Collin actually has some nasty stuff.
