I am sure the evidence to which the hon. Gentleman refers is very persuasive, but I am sure he would agree that a ratio such as 1:8 cannot be applied uniformly across his local hospital or across all local hospitals. It can vary from day to day, depending on the level of illness and the age of the people going into particular wards. The best hospitals have computer models that change the numbers of nurses operating in different wards on a daily basis. Other hospitals do not do that, except on a quarterly basis. That is the change that we need to make.