we just moved dds primary.
her old one went from good to satisfactory last term summer- in spet ofted rules changed again if had been inspected in last few months would have been same as yours requires need for improvement.
to some parents it wasenta surprise.
i learnt about from report dident realise-temporary teachers juniors as mine was ks1 dident realise .
it focussed out decrease in attainment.
so i did some digging
realised sats were rubbish
last ofsted good 2009when applied. but looked at 2010 governers minutes said they would get satisfactory so still 2years later waited on laurels got bad results.
In my case there was other reaosns but was very depressing at time. it was a faith school church then inspected and said was satisfactory.
some schools who got bad have turned themselves around.
as long as you feel confident with management that they have action plan and that they have a action plan.