“Cool” is not a word usually associated with Nazi dictator Adolf Hitler, whose genocidal purges cost tens of millions of lives between the mid-1930s and 1945.But that was the response of ambulance employees taking part in a National Health Service (NHS) survey when asked to rate Hitler in comparison to their own chief executive.The survey, entitled Making Leadership Cool, is part of a 10,000-pound project that will help the NHS West Midlands Strategic Health Authority to devise a new leadership strategy.The questionnaire was circulated to all 3,300 workers at West Midlands Ambulance Service last month after two paramedics applied for a bursary to carry out the survey.