I'm curious to see how you come to the conclusion that Paulino is fireballing crap. His numbers are elite at every level, save for a hiccup in the majors with HR problems. He might be a reliever due to shoulder problems and lack of innings pitched but the talent seems there.
edit: Not to mention, I would think that he has the potential to be a damn good reliever if that's what it comes to. He has the swing+miss stuff and never had an issue throwing strikes.