More on point for this thread, Austin Warner has morphed from an organization guy to a prospect. His NRI last spring is irrefutable evidence of that. He has done nothing but add to his cred this season.
He will surely be in ST again as a candidate for lefty pen arm. His ability to spot start is a plus.
Whether he can get MLB hitters out is a question, but plenty of touted hard throwers have been having that problem. At least he seems able to get it over the plate. A good ST could get him a spot in a made over pen. That being the case, an appearance on the next iteration of the prospect list seems warranted.