NFL Connections #109, Answers
The full solution: all four groups and the 16 names, sorted from the easiest group to the trickiest.
Super Bowl MVPs of the '00s
Peyton Manning, Drew Brees, Hines Ward, Santonio Holmes
Super Bowl MVPs of the '90s
Troy Aikman, Emmitt Smith, Steve Young, Kurt Warner
Super Bowl MVPs of the '80s
Joe Montana, Marcus Allen, Phil Simms, Doug Williams
Super Bowl MVPs of the '70s
Terry Bradshaw, Franco Harris, Lynn Swann, Roger Staubach