Joel, an education visionary and proven leader of change, was former chief executive officer at Amplify. Joel was chancellor of the New York City Department of Education, where he oversaw a system of 1.1 million students and 136,000 employees. While there he led systemwide transformations that resulted in significant improvement in student performance. Under Joel’s leadership, high school graduation rates in the city rose 20 points—an increase of more than 40 percent.