Exactly... It's such a simple concept, it's astonishing that people can't see this.That's the point of it all, you're only better off sacking a poor manager if you hire one that isn't poor.
Since we cocked that up it leaves dimwits claiming "We are no better off, we should have kept him". No you swellhead, then we're just as shit as we are now. We should have hired someone who wasn't useless. That was the error.
It's server tunnel vision and an inability to take a step back, breathe, and look an a holistic view of it all.
As you say, sacking Ange wasn't the issue, it was the complete and utter incompetence at picking a new one.