It's based on one job, Birmingham, where he was hamstrung with players being annoyed the previous manager was sacked. He couldn't win them over.He did a reasonable job at Derby under the circumstances, but he's already become a bit of a laughing stock in managerial/coaching terms. Would players respect him for the great player he was more than the poor manager he's been? Hard to say, really
As a coach I've been told he is very good. I'd watch with interest his next job to see if he can turn his management career around.
Clubs taking to him will be looking at his abilities and reputation amongst players as a coach. Not a few Birmingham fans who know nothing about what went on at the club. It's funny the same abuse isn't given to big Tony or Rowett who also achieved the square root of F all.