Why would anyone shed tears about not adding Paul Blackburn to the roster? I mean he's not literally the worst pitcher in the entire universe, he's even probably slightly above average, but it just seems like a really weird hill to die on.
Let me pick my own guy to go after it would be someone more like Seth Lugo, or if that's too expensive in talent, a guy like Trevor Williams -- solid bottom of the rotation inning chewer. To put it mildly, another inconsistent guy who has some vague notion of more or less unproven ability, like Blackburn, is simply the last thing we need right now. We need inning burners, guys who will take their turn in the rotation and be there and pitch 6+ innings, not Scrhoedinger's pitchers who are simultaneously pitching and not pitching.