Cathie Black Out as NYC Schools Chancellor 10.82K Jim Newell 04/07/11 09:59AM Filed to: exits exits Cathie Black Michael Bloomberg New York City Schools Education Tweetg The grand experiment is finally over. NYC Mayor Michael Bloomberg has dropped his unqualified and unpopular schools chancellor Cathie Black after only a few months on the job. Her replacement will be Dennis Walcott, a current deputy mayor.