My dd has just finished her GCSEs. She would have excelled regardless of whether it was teacher evaluation or exams. She is exactly the type of kid who would end up with a string of 10s if they introduced this. But how would that benefit anyone?
My own view, having seen dd and her friends go through the system over the last couple of years, is that we should just scrap GCSEs altogether. We don't need them any more. Kids need to be in education or training until they're 18, so let's just put enough advice and assessment in place to enable them to move on to the most appropriate next steps - be that A-levels, vocational training or apprenticeships etc. It doesn't have to be one size fits all. We should work with individuals to guide them through the options.
There is so much pressure on kids' mental health. Some kids, like dd, will find the academic stuff easy and sail through. Others will struggle, lose confidence, start self harming etc. There is unnecessary pressure on schools and teachers too. So much focus on targets rather than teaching. Why not just ease it and let them take qualifications at 18 instead? I honestly don't see what value GCSEs add.