I'm all for the removal of entrenched credentialing/accreditation systems, but would be pleasantly surprised to see anyone in the center sign off on it. Yet it's not only ideal but necessary for any semblance of school choice to avoid worse demonic possession than what we've already seen. I remember this being my biggest disagreement with Friedman in Free to Choose, having the benefit of greater hindsight. An approval system of any sort seems eminently reasonable but becomes the chief invincible vector of capture since it is most difficult to abolish.