Led by rookie quarterback Bo Nix, the Broncos are back in the playoffs for the first time since Peyton Manning led the team to a Super Bowl 50 win. And for the first time since the Hall of Fame quarterback retired, Denver looks like it has a long-term answer under center. From Trevor Siemian to Case Keenum to Nix, here’s a look at the Broncos’ different quarterbacks during that span, who they are, how they fared in the role and where they are today. Trevor Siemian John Leyba, The Denver PostBroncos quarterback Trevor Siemian (13) throws a pass to running back Devontae Booker (23) during the third quarter on Dec.