School improvements: 'Just enough is not good enough'
Almost 3,500 schools in England rated as "requiring improvement" face being forced into new leadership, under plans to be announced by David Cameron.
He will promise that if the Tories win the May general election they will tackle "coasting" schools that are failing to make sufficient progress.
Speaking to BBC Breakfast, Education Secretary Nicky Morgan said that the aim of the plans was to encourage collaboration in order to improve standards.
"Just enough is not good enough for our children," she added.