In the words of Teddy Roosevelt I have a horror of words that are not translated into deeds, of speech that does not result in action. None of us should measure our contribution here by our goals, our hopes, or how much public money we spend in pursuit of them. The only measure that counts is the difference that our actions, ultimately, make for people. It's not good enough just to deliver a programme if that programme doesn't actually make the difference it was supposed to. In my view, we don't spend enough time as a system looking back and answering those sorts of questions. 