I've said the same thing a few times on here.  People would have absolutely flipped when we signed Levy had the internet been available like it is today.  Personally, when Ralph hired DJ, I think he had believed he found another Levy which at this point in time doesnt appear to ever be the case.   
  
The question here is, how do you find a great head coach.  Personally, I think its a matter of chance and circumstance.  If there was an effective formula to finding a great coach the league would be a lot closer in the standing than it is.