If you really think about it, then staying here makes the most sense.
The problem with Packers and Cardinals jobs is that they don't have much defensive talent. Arizona was 27th and lost a lot of their players from years ago. With a brand new coach, its going to take time with that team who also needs to find a QB. Packers have the QB, but their defensive talent is shit.
Here he has a young defense that was already 10th ranked. We re-sign Fuller, Prince and he ends up getting Key or Chubb then gets some guys healthy and better depth. Then he's got a heck of a unit that can remain a top defense for years. Thats a faster way to get a head coaching gig if thats what he wants.
Would not be surprised if the Bears were a top 5 unit, playoff team and Fangio gets a HC job. Would like to see them sign Ed Donatell back and then consider him for a future DC position if Fangio ever leaves.