Lewisham LA wants Sedgehill to do better. Specifically, they want Sedgehill to do better at getting higher results for kids on free school means (FSM – the educational proxy for ‘disadvantaged’). The main criticism is that these kids are ‘too far’ behind the non-FSM cohort.
I would personally (I stress this is my own view, not one I’ve tried out on other parents or the governing body) consider it to be an overt abuse of statutory power if a head of education at a local authority were to deploy the power without unequivocally meeting the usage entry conditions for that power
I saw the same trend for the small group of Lewisham schools – Sedgehill is not an outlier.
So I think Sedgehill is not in any way a dramatic outlier or underperformer when compared with similar or even less challenging FSM schools. On the boys thing, Sedgehill has had an unusually high %boys, which again will mean it is unsafe to compare too directly against schools with far more girls who perform better, and it will tend to make Sedgehill results look worse than they are, taking this into account.