Peyton Manning’s lack of 3rd down success another justification of benching

  Are Peyton Manning’s days in Denver done? OK, let’s not go that far, even though some think so. Manning’s injured and Gary Kubiak insists he’s still the Broncos quarterback when he’s healthy. Which makes sense; the 39-year old is one of the greatest to ever play the game and he possesses the unique experience of playing in three Super…