Ofsted has branded the council's efforts to support and challenge weaker schools as "ineffective".
It follows a recent five day inspection in the county. Ofsted claims there was a "legacy of under achievement", because the council had been too slow to intervene.
The Chief Inspector even went onto say the complacency had "denied tens of thousands of children the chance of a decent education".
More top news
A mostly dry night with some clear skies allowing a touch of frost to form in places. Increasing cloud from the west tomorrow.
A woman from Milton Keynes who became Britain's first surrogate 30 years ago says she still wonders what became of the baby she gave away.
The Government has announced almost £2 million of funding for the region's coastal communities which it says will help develop tourism.