It's probably suggesting that oversight which is made public as a one word rating like "inadequate" is not a good way to fix problems in a school, since the exa

It's probably suggesting that oversight which is made public as a one word rating like "inadequate" is not a good way to fix problems in a school, since the exact same experienced teachers and principals you'd need to turn a school around are the most likely to avoid an "inadequate" school. Presumably this feels even more unfair if the computer eats the inspectors' homework.