NFL Connections #71, Answers
The full solution: all four groups and the 16 names, sorted from the easiest group to the trickiest.
Browns quarterbacks
Otto Graham, Bernie Kosar, Baker Mayfield, Brian Sipe
Browns running backs
Jim Brown, Nick Chubb, Leroy Kelly, Kevin Mack
Browns pass catchers
Ozzie Newsome, Amari Cooper, Jarvis Landry, David Njoku
Browns defensive legends
Myles Garrett, Denzel Ward, Michael Dean Perry, Hanford Dixon