Just this week, former Green Bay Packers quarterbacks coach Ben McAdoo received his walking papers from the New York Giants. This marks the third time one of Mike McCarthy's assistants failed as a head coach.
Before McAdoo's demise, former Packers offensive coordinators Jeff Jagodzinski and Joe Philbin struck out on their own. Jagodzinski delivered two winning seasons at Boston College before drawing the ire of his boss. The school fired Jagodzinski one day after interviewing with the New York Jets, a professional mistake from which he never recovered.
Jagodzinski might not have faltered due to his coaching acumen, but Joe Philbin did.