You make a strong logical argument, but it relies critically on the tests being really great. Have you examined the sample questions as well as the standards? And even if the tests are great (they are not) do you have any idea how well this will play out in real classrooms? I ask because, as a veteran teacher, my guess is that CCSS will be great for the top two deciles and a disaster for the rest. The super worst thing is that no one knows because this top-to-bottom overhaul has not been tested/proven anywhere. That is just malpractice, on an enormous scale.