I've seen it only once. One manager, not in my department, had a high turnover. Staff were either fired, quit, or transfered. Senior management eventually stepp

I've seen it only once. One manager, not in my department, had a high turnover. Staff were either fired, quit, or transfered. Senior management eventually stepped in and discovered this guy was pretty toxic. But they couldn't simply fire him. Since he was well-connected in the industry they gave him time to find another senior position.