Harry Bloom, manager of the YU School Partnership’s division of Planning and Performance Improvement, shares some of the work he is doing to help Jewish day schools develop active strategies to increase their sustainability in the communities of Bergen County, Baltimore, Philadelphia, Chicago and Cleveland. He relates here particularly how he is trying to figure out how to leverage community power in these five communities to increase revenue and efficiencies. This work is generously supported by The AVI CHAI Foundation and local Federations and Foundations in the communities.