This is not a good development. Every day that Black was Chancellor, she further undermined Bloomberg and revealed his contempt for students, parents and teachers. Walcott will follow the same smash-and-grab agenda, but will be far more adept at it, and his being black will provide a partial shield from criticism.
After all, if people are motivated by power and greed, better for the rest of us if they are incompetent and the butt of jokes. Black was a gift from the Gods of Absurdity, which they have sadly taken back from us.
Let's all hope that this comes too late to revive people's view of Bloomberg, but it makes our job harder, not easier.