Bob Seger says so of the recently departed Eagle, and you know, we've gotta agree.
Doctors 'tried like hell' to save Glenn Frey - NZ Herald
Glenn Frey Dies: Eagles Singer-Guitarist Was 67 – Deadline
Glenn Frey, guitarist for the Eagles, dies at 67
Don Henley's Confession About The Eagles' Real Leader
Eagles' Glenn Frey to be saluted by band mates at Grammy Awards - Los Angeles Times
Bob Seger on Glenn Frey: 'He Was the Leader of the Eagles
Remember When the Eagles Fired Don Felder?
Obit - Vulture
The Eagles guitarist Glenn Frey dead at 67
AN EAGLE'S FLIGHT ENDS: GLENN FREY, 1948-2016
Forget Sun Tzu. Take these 6 leadership lessons from the Eagles' Glenn Frey - Washington Business Journal
Don Henley - Wikipedia
Glenn Frey: The Songwriter Who Took Eagles To Their Greatest Heights
Glenn Frey Remembered by Fellow Detroiter Bob Seger
10 Quotes from The Eagles That Will Challenge Every Leader