What happened to evidence based policy? Government Ministers should take a Hippocratic oath - first do no harm. Big systematic changes should always be trialed and outcomes properly analysed, before being implemented more widely. Shake ups in health and education should only be made on the basis of good evidence that they'll be effective, otherwise patients and children suffer, just to ministers can enjoy tinkering. There is just so much random on the hoof policy announced, seemingly based on little more than the 24 hour news cycle and the wim of some minster or other. Where are the grown ups?