Ignore outgoing head at your peril
In other words, talk to the town hall bureaucrats, but on no account talk to the one person who knows best what the head's job is all about!
May I offer my advice? Ignore Joan Sallis and, if necessary, ignore the regulations: your duty is to serve the best interests of the school and its children.
So use your common sense and consult whoever you think will give you the best advice - and I will be surprised if that does not include the present head.
128 Crayford Road