It's called 'The Peter Principle' in management-speak. You reward a star employee by promoting him to a managerial position and he proves to be an inept manager. Those over whom he was promoted and whom he now manages are irritated, and he is demoralised and discouraged.
With millions of working days lost in the UK each year, stress costs British businesses billions annually. To make matters worse, a landmark court case recently ruled that employers can be held liable for the effects of workplace stress on employees' health.
