Accidental managers: Why people who are great at their job can fail when they get promoted

There's a saying that people don't quit their job, they quit their boss. And poor management certainly has a lot to answer for in the UK workplace. A staggering 82% of new managers in the UK are what the Chartered Management Institute (CMI) calls "accidental managers", according to a YouGov survey commissioned among 4,500 workers and managers in June, which has recently been published.