The government’s ambition that every child should achieve and thrive is not one many school leaders would argue with. In fact, most of us would say we’ve been working towards exactly that goal for years — often in spite of the system rather than because of it. The recent strategy document sets out a broad, hopeful vision: higher attainment, reduced disadvantage, improved attendance, better behaviour, stronger inclusion. It is ambitious, and it is well-intentioned. But as eve