It's interesting to see how different people react to the idea of process improvement. Most people fall into one of two camps - I'll term these the Conservatives and the Radicals.
Conservatives don't see any need for change at all: "That's just the way we do things around here, we get the job done, and I've got work to do anyway." They put no effort into process improvement, and therefore realise no improvements. They never make things worse - but they never make them better either.