Bo can’t throw. That is quite the takeaway from the Broncos’ Big Easy win over the New Orleans Saints. Returning home Friday brought surprising hand-wringing on talk radio and social media about Nix’s accuracy. His misses were unsettling, but no reason to break glass in case of emergency. Not yet anyway. Each game is not a referendum on Nix’s career. And the latest performance should not be an indictment after a week when the team did not practice.