Watching it today, I was left still puzzled about what had been going on with Mr Povey and the rest of the staff, because he admitted to offrolling students at exam time, admitted it was a mistake, but gave no explanation. I realise the series is all very carefully edited, but he comes over as a very dedicated, caring head who it seems a shame to lose; on the other hand, I've seen the effects of offrolling of children who are effectively put on the scrapheap because the school doesn't want to bother with them, and it seems completely inconsistent. But I doubt that we will ever be told what really went on.