I've only been teaching 12 years. Came into teaching late in life. When I started I was one of the first ones to be trained to teach the National Curriculum. I had a wonderful mentor. We worked together on the NC. I learnt a lot from her and she learnt a lot from me. Like you I'd never heard of capability until the the mishmash libdemcons and Michael Gove. I went from being an outstanding teacher to barely satisfactory. I changed schools to escape unfairnes but jumped from the frying pan to the fire. I too have resigned but at 53 am going to find it hard to get another job in teaching. Could try previous profession but that too is going through changes. Too young to retire as have a mortgage and bills, too old to be your all hoop jumping, OFSTED loving, tick box loving teacher. Don't know what I will do in September, supply but I guess that will be just as bad I guess.