John Fox was ousted from his job in Chicago, but he’s hoping to stay in the NFL. Fox says that he is waiting for the dust to settle on various head coaching jobs to see if he can join someone’s staff (Twitter link via Mike Klis of 9NEWS). 
Fox was a defensive assistant for many years before he became the head coach of the Panthers in 2002. All in all, he has spent the last 16 seasons as an NFL HC, but it’s unlikely that he will get another crack at running his own show this offseason. His connections and defensive acumen could get him a DC job, however.
As shown on PFR’s Defensive Coordinator Tracker, the Ravens and Packers are the only team with active searches at this time. More spots may open up for Fox once the Cardinals, Lions, and other teams decide on a head coach.
The Lions will need a DC. Hopefully they’ll be able to snag Mike Vrabel.
Can’t see Fox getting a head coach gig any time soon. Maybe ever. Though next year some team may be hard up enough. Too old school. Game has past him by I’m afraid.
I think he realizes this which is why it clearly states join someone’s staff….aka assistant coach.
I think he’d be good for a mentor to a young coach type of role. Similar to what Wade Phillips does for Sean McVay.
here after he finally got hired