Pittsburgh Steelers rookie quarterback Drew Allar has been an early star of rookie minicamp . The third-rounder out of Penn State, whose footwork drills have drawn some negative reactions despite not warranting that sort of attention, was able to show off his rocket of an arm while also being the only quarterback present at rookie minicamp for the Steelers, thus enhancing his opportunity to work with the coaching staff. There's no denying Allar's high ceiling and his potential to become Pittsburgh's next franchise quarterback, but there are some question marks surrounding him that may lead to the hype train being slowed just a little bit. How is Allar Going to Develop? The most promising aspect of Allar's profile as a prospect is that he has all of the tools that you can't teach a quarterback with his raw arm talent and size (6-foot-5). On the flip side, the technical and intangible aspects of the position, such as his mechanics, footwork, poise and ability to process defenses, are a work in progress.…