This brief is the third in a series documenting the implementation of an economic mobility initiative supported by New York City's Change Capital Fund (CCF). CCF is a consortium of New York City donors formed to invest in local nonprofits that undertake data-driven antipoverty strategies integrating housing, education, and employment services. CCF donors believe that an integrated approach to service delivery is an important way to "saturate" areas of persistent poverty with intensive, comprehensive services, cultivating multiple pathways toward neighborhood-level change. The first brief described CCF in detail; introduced the initiative's first grantees, located in Brooklyn and the Bronx; and shared the organizations' ambitious work plans and start-up efforts. The second brief describes two pervasive challenges to service coordination and the ways grantees have responded to them. [For the first brief in this series, "The Promise of a Community-Based Approach to Economic Opportunity: New York City's Change Capital Fund. No. 1," see ED570529. For the second brief in this series, "Addressing Challenges in Community-Based Service Coordination: Breaking Down Silos to Promote Economic Opportunity. New York City's Change Capital Fund. No. 2," see ED570521.]