Summer vacation is almost over, sunsets and barbecues replaced by August angst. Does Disneyland offer a FastPass for NFL quarterbacks? Now that the Broncos are auditioning their 14th starter since Peyton Manning retired, I feel compelled to write a self-help column for coach Sean Payton. The aim is to be insightful, thoughtful and analytical in explaining the development of a rookie into an impact player. The working headline: Please Bo Nix Don’t Stink. Contrary to those who think Denver is a playoff contender, the underlying theme of Broncos training camp is that it would be a splendid idea to make this gamble work.