Zidane won 3 champions league cups in a row. That's it, that is all there is to it, it doesn't matter what else he did, I don't care about Bale, I do not care about hazard, nothing else matters about him at that point. First of all winning 3 champions league in a row is already insane to think about, and also being the manager to do that? He is the first manager in history of sport to do something like that, I do not think that we will ever see that, or at least not in anytime soon.
Winning one champions league is already very very very difficult, it is ALL the greatest club of Europe getting together and one team wins, this dude did it 3 times a in a row. So I honestly believe that if he is bad at man management, let it be? Like who cares, he could cause everyone to leave and every player could hate him, all that matters is the awesome results he got.