Matt Waldman’s RSP examines the decision-making flaws of 2018 NFL Draft prospect RB Saquon Barkley. Big, fast, agile, creative, and versatile, what if I told you that Saquon Barkley wasn’t a sure thing as an NFL starter? Sounds crazy, doesn’t it? After all, the tools are tremendous. Watch enough tape and it appears that Barkley…