It has been the No. 1 rule in Broncos Country since 1983: Don’t cross John Elway. So consider yourself warned, coach Vic Fangio. Knock off the fumbling, Melvin Gordon. And special-teams coach Tom McMahon? Might want to update your LinkedIn profile. “It’s not too late,” Gordon said Wednesday. “We’ve got a lot of games left to turn things around and the year is not over with for us.” Well, Mr.