I never heard of this guy. But he had a nice game against the Cards the other day (1 2/3 scoreless innings), and had a 2.04 ERA and 1.08 WHIP in AAA in another system last year. Maybe he can be at least a depth piece in AAA.
https://www.mlb.com/news/hobie-harris-looks-to-make-name-with-nationals?game_pk=719137He's 29. Could he be (at least a longshot to be) a reliever version of Joey Meneses? (I'm not predicting it, but why can't a guy dream?)