Vince Lombardi, Tom Landry, Bill Belichick, Sean Payton....
The list of coach's above all were NY Giants assistants and were never offered a HC job. Obviously the first four are some of the greatest coach's in the NFL history.
Let us not forget that the NYG, after the worst 7-8 years potentially in NY Giants history, and worst record in the NFL, passed on their first choice because ownership did not want to pay as much $ for as many years as another NFL owner...That was the #1 reason and Mara was shockingly candid about that
If Rhule goes on to be anything like the first four coach's above, that is something that will be shared and passed on for generation and generation of Giants fans the same way my Grandfather told me about Lombardi + Landry.