NFL Connections #114, Answers
The full solution: all four groups and the 16 names, sorted from the easiest group to the trickiest.
Broncos quarterbacks
John Elway, Peyton Manning, Jake Plummer, Bo Nix
Broncos running backs
Terrell Davis, Floyd Little, Clinton Portis, Phillip Lindsay
Broncos pass catchers
Rod Smith, Shannon Sharpe, Demaryius Thomas, Courtland Sutton
Broncos defensive legends
Steve Atwater, Champ Bailey, Randy Gradishar, Von Miller