The big problem is that no one more capable wants to work there.

We have a mild teacher shortage across the board (which may become major with reports of as many as 40% of teachers seriously considering leaving the profession this year). And then in turn, inner city schools are worse workplaces... which attract worse peers... You need a hell of a martyr complex to take this on, and even if you have it you won't last.

And throwing money at comp won't fix this, either: that's not a great motivator to get the people with the passion to fix this.