I think it is more nuanced then that, if you are managing people you have to learn which buttons to push to get the best from them, individually and as a group. If the only button a manager can press is the discipline one, it doesn't bode well for his management capabilities.
I don't know if Sutcliffe over reacted or not, you would have to have been there really. But did Kelly over react too? That is a fair bit of over reaction. But Sutcliffe is a young lad, Cunningham isn't - it shouldn't come down to that type of situation.
I get your point URoy, and it's valid, but so is mine I think. But it is like being told when your asking directions that you shouldn't start from here. Cunningaham shouldn't have started from the position he did on discipline, so what happens afterwards is his responsibility.
But fundamentally I think we have a team that can come closer to KK then that, and the fact that we didn't is Cunningham's responsibility (and there is a difference between the word 'fault' and 'responsibility' in that sentence).