The Broncos want Bo Nix to 'let it rip' and produce more big plays -- so what's holding him back?

INGLEWOOD, Calif. -- In the moments following a tooth-grinding escape against the winless Los Angeles Chargers , Denver Broncos coach Sean Payton talked about his continued wrestling match with time. The Broncos hope to slightly slow quarterback Bo Nix 's internal clock between the snap and the whistle to end each play. And they feel like succeeding with that adjustment would cause everything to fall into place for Nix and the Denver offense so they can, in Payton's words, "let it rip." "There's a lot that's been said about his feet, I think he's settling that down," Payton said in…