I really appreciate your comment, thanks! I completely agree with your point about some people in it for the love of the job - I didn't mean to imply that everyone was a hobbyist; I loved doing it, and a part of me regrets leaving it to do a degree.
Equally, I think that there really does need to be the accountability and sharing of good practise that you mentioned - I come from the Vale of Glamorgan, South Wales, where there is slim to no communication between schools.