Head teachers' leader Brian Lightman said that so far there had been a "completely inadequate response".

BBC: Head teachers take GCSE battle to court

Brian Lightman, general secretary of the Association of School and College Leaders, cautioned against the over-simplified use of school performance data.

BBC: Ofsted chief Sir Michael Wilshaw wants paid governors

Brian Lightman, leader of the Association of School and College Leaders (ASCL), emphasised the lack of enthusiasm for localised pay negotiations.

BBC: Teachers' pay rises pegged to performance