Governors do have a responsibility for Safeguarding and must have a Safeguarding Governor who monitors the procedures in the school as well as ensuring there is a robust policy and recording of any incidents. The fact that records were missing was, clearly, down to the previous Head. It would also bother me that the Clerking of the Governing Body was inadequate. We have a list of recurring tasks and reports that must be done, and appear on the agenda. For example, Safeguarding Report, Financial Benchmarking, Headteacher Appraisal, Pay Review Committee, and many more. We continually check progress data and receive reports on teaching quality (you have to trust the Head or external reviewers on this) and all manner of other things. DBS checks are so basic,one would not expect Governors to have to chase that one up, but they should have mechanisms for interpreting progress data, pupil premium data, SEN data, and very many more checks and balances so they know where there are issues. Governors are responsible for the strategic direction of the school, but do have to be informed about what quality of education the school is offering. If they do not know this, it is virtually impossible to improve. The new Governors will be getting to grips with this.
Usually an "Executive Head" is a sounding board for the full-time Head, and not normally full-time in school. However, the big challenge in any school that has haemoraged teachers is getting committed staff (job share can be good if it gets the right people in) who are good teachers. The school will also be suffering from a loss of "middle" managers who are curriculum leaders or pupil premium/SEN leaders, for example. It is very difficult (impossible?) to get a school to function properly with supply teachers is very many posts. It is not just about "can an individual teach?" To overcome problems the school must have a first class SLT and middle management must be delivering the curriulum leadership too. Obviously they have not been, but no-one seemed to notice. Totally agree that keeping the improvements going is always a challenge but if a Head does stay, and is good, this can be done.
It will not be good enough to train teachers at another school. Collaboration is, of course, good but this school will need expert advice. Usually this comes from a learning trust or a much bigger organisatgion with experts. It is highly unlikely that pupil premium, SEN and Early Years issues and accurately recording progress can be sorted out by looking at a neighbouring school. In fact, I am staggered the school had not received a "health check" by the MAT's officers. This is totally normal in schools these days and alerts the MAT, and the school, to the issues before Ofsted arrive. If you know the issues, and are addressing them, Ofsted may be a tiny bit kinder!
Any school that fails on safeguarding can, fairly easily, put that right. However, to have not known there was a problem is unforgivable and Ofsted have taken it very seriously. Schools and Governors have had so much help available for ensuring safeguarding is robust. Policies written for them, Governors appointed, procedures clearly laid out for them, training offered - an endless list. How could they be so stupid as to get it wrong? It, hopefully, will not affect teacher retention as it is a specific management issue and does not affect good teaching, good progress and attainment and the vast majority of the children. The teachers may well be disappointed in the Head or lead safeguarding teacher and the Governors.