NFL Connections #36, Answers
The full solution: all four groups and the 16 names, sorted from the easiest group to the trickiest.
Played at Auburn
Bo Jackson, Cam Newton, Cadillac Williams, Takeo Spikes
Played at Oregon
Justin Herbert, Marcus Mariota, Haloti Ngata, Patrick Chung
Played at Stanford
John Elway, Andrew Luck, Christian McCaffrey, Richard Sherman
Played at Washington
Warren Moon, Steve Emtman, Marcus Peters, Budda Baker