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Laura Blake has more than 20 years of experience in leading scientific programs and research in the environmental science and policy domain. She has deep expertise in surface water quality restoration and protection and has spent her career designing and implementing scientific studies to support efforts to protect human health and aquatic environments. She has significant knowledge of Clean Water Act rules and regulations and has extensive experience supporting federal and state regulatory programs with implementation of and compliance with the federal Clean Water Act.

Jennifer S. Riggs, Ph.D., brings her extensive research, policy, and nursing experience to improve care for patients, especially older adults. Her clinical area of expertise is Medicare-certified home health and home and community-based care for adults and older adults with multiple co-occurring chronic conditions and complex care coordination needs.

David Kaz, a principal associate in Abt’s Social and Economic Policy Division, has nearly 20 years of experience providing technical assistance, training, research, and policy analysis. He has worked on a wide range of programs and policies that affect low-income populations. He has directed, designed, and conducted both large- and small-scale, multi-faceted technical assistance projects for federal and state agencies and other clients and stakeholders. Clients have included the U.S. Department of Agriculture (USDA) Food and Nutrition Service, Washington State’s Department of Social and Health Services, King County, and the City of Seattle. He has worked on workforce legislation with members of Congress.

Radha Roy is a mixed-methods researcher and senior evaluation leader with over 16 years of experience designing and directing large-scale federal evaluations of workforce development, income support, and education programs.

Jessen Carroll is a human resources (HR) professional with more than 20 years of experience overseeing all aspects of HR, organizational communications, governance, and administration functions. She has experience leading organizational integrations and change management efforts. She also has operations management, business analysis, business process improvement, and project management experience. She can balance tactical day-to-day operational needs with a strategic grasp of long-term business objectives. 

T.J. Pepping is an environmental scientist with 13 years of experience working in the intersection of data analysis and communication, helping clients interpret environmental data and share important information with the public. 

ZeAmma Brathwaite has over 20 years of experience partnering with private organizations and federal agencies to improve access to care and health outcomes for individuals and communities. A certified project management professional, Brathwaite has extensive experience leading multidisciplinary teams in the design, implementation, and evaluation of complex, large-scale transformation efforts using improvement science methods and tools to accelerate change.

Douglas W. Elmendorf, Ph.D., is Lucius N. Littauer Professor of Public Policy at Harvard University’s John F. Kennedy School of Government. He served as Dean of the Kennedy School from 2016 to 2024 and was previously Director of the Congressional Budget Office from 2009 to 2015.Elmendorf has held senior economic positions with the Federal Reserve Board, the President’s Council of Economic Advisers, and the Treasury Department, where he was Deputy Assistant Secretary for Economic Policy. He is a widely respected economist who has deep knowledge of many of Abt’s core research areas, including health care policy and approaches to increasing economic security.Elmendorf is the author of more than 30 publications and has testified before Congress on economic issues 50 times since 2005.