I recently signed up for baseball prospectus and Kevin Goldstein said that "Hellweg could be anything from a no. 2 starter to a closer to just a guy with a nice fastball, depending on how he develops, but his upside is hard to deny."...
I don't think I have ever seen it!!! A national writer has claimed a Brewers pitcher has the upside of a #2 and has a 3rd pitch!!!
The more I read about this deal the more I like it. One thing people were very critical about last year in the draft was the Brewers failure to go after guys with high upsides.
The deal for Grienke adds guys who could have low floors but also high upsides. According to BP, Hellweg could be a #2 and Pena as high as a #3. Though they are still a long way from ready both players could if developing well be the best arms in our rotation. If Jungman was more polished but had less upside then Hellweg seems to be the opposite. The pitchers seem to fit well into a origination rotation that has plenty of guys who should develop into decent but not great arms and give the organization upside above just solid.
And this is all ignoring the fact that Segura should be a solid infielder who could even develop into a star.