NFL Connections #59, Answers
The full solution: all four groups and the 16 names, sorted from the easiest group to the trickiest.
Elite centers
Jason Kelce, Maurkice Pouncey, Jim Otto, Dwight Stephenson
Elite guards
Larry Allen, John Hannah, Bruce Matthews, Steve Hutchinson
Elite tackles
Anthony Munoz, Walter Jones, Jonathan Ogden, Joe Thomas
Elite edge rushers of today
Myles Garrett, Micah Parsons, Maxx Crosby, Nick Bosa