NFL Connections #24, Answers
The full solution: all four groups and the 16 names, sorted from the easiest group to the trickiest.
Dallas Cowboys greats
Bob Lilly, Randy White, Drew Pearson, DeMarcus Ware
Washington greats
Darrell Green, Art Monk, John Riggins, Joe Theismann
New York Giants greats
Lawrence Taylor, Michael Strahan, Tiki Barber, Harry Carson
Philadelphia Eagles greats
Reggie White, Brian Dawkins, Donovan McNabb, Brian Westbrook