The redesign was meant to ease pressure on teachers in the wake of the suicide of headteacher Ruth Perry (pictured), by making inspections more 'nuanced'.
The new colour coded system will be launched by Education Secretary Bridget Phillipson, who is expected to insist that it 'raises the bar on what we expect from schools'
Sir Martyn Oliver told MPs on January 7 that the inspector had behaved in line with 'the way the framework was written' and 'there was no suggestion that they did a bad job or anything wrong'.
Flora Cooper angered parents last March when she urged supporters to blockade John Rankin Junior School in protest over the death of fellow head Ruth Perry.