NFL Connections #111, Answers
The full solution: all four groups and the 16 names, sorted from the easiest group to the trickiest.
Played at Cal
Aaron Rodgers, Marshawn Lynch, DeSean Jackson, Jared Goff
Played at Syracuse
Jim Brown, Larry Csonka, Donovan McNabb, Marvin Harrison
Played at Purdue
Drew Brees, Bob Griese, Rod Woodson, Len Dawson
Played at Boston College
Doug Flutie, Matt Ryan, Luke Kuechly, Matt Hasselbeck