One of the most influential advisers to the education secretary Michael Gove has argued in a 250-page paper that "real talent" is rare among the nation's teachers.
While some children will always be blessed by a brilliant teacher, by definition that is not a scaleable solution to our problems: real talent is rare and mediocrity is ubiquitous.
In the controversial paper, he also criticises what he describes as 'third-rate higher education institutions".
In many third-rate higher education institutions there is a large amount of 'social science' work in economics, anthropology, sociology, literary theory and so on of questionable value both from an intellectual perspective and from the perspective of students, jobs prospects.
More top news
A possible ninth planet at the edge of the solar system could be the reason behind one of the biggest mysteries in astronomy.
Philip Thomas was a 10-year-old pupil at Pantglas Junior School in Aberfan when a coal tip collapsed and slid downhill.
The chief executive's resignation comes amid controversy about allegations of doping in cycling.