@oneteen - I happen to think the final standardisation is questionable... Isnt Ofqual saying they don't trust teachers grading is some respects
I have to say I don't agree. Remember it's always been the case that teacher-marked coursework has been subject to external moderation - not because teachers are suspected of inflating marks for their pupils, but to ensure some level of consistency, and to provide some comfort that it's a rigorous, transparent, fair system. (Yes, I know there are bad cases of moderation, but that doesn't change the principle).
So, I think there has to been some external check on the grades assessed by the teachers - otherwise, just think of the suspicions and insinuations that will be levelled at schools that get very good grades (unjustified suspicions, no doubt, but still damaging).
However, I think in the current circumstances they should set the tolerance quite broadly, ie only moving grades down or up where it significantly differs from both prior results in the school AND the expected attainment of the cohort of pupils based on their GCSE grades.