Cosmetic procedures have almost disappeared in my area, including one I was promised years ago to repair a scar on my face. I expect other areas have similar rules.
The use of bank staff could be reduced if trusts were allowed to recruit more permanent staff and people didn't have the annoying habit of being more ill during the Winter.
Most medicines are bought as cheaply as possible and I don't think people prescribed certain expensive (eg cancer) drugs would be too happy about having them discontinued.
The fact is that the UK spends considerably less overall than countries such as France and Germany. The NHS is underfunded for what people expect it to do in a modern, supposedly first world country. I expect France and Germany use bank staff, prescribe expensive drugs and do a limited number of cosmetic ops too.
The 'internal market' (the system introduced by the Tories to procure services) costs about £3.2 billion for administrators, lawyers and accountants.