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Michael Witt brings more than 33 years of experience as a statistician specializing in survey design and survey data analytics. He has more than 27 years of managing staff at the administrative and project level. Mr. Witt has worked with government clients in fields ranging from energy to healthcare.

Dr. Tiffany G. Harris is an epidemiologist with over 20 years of experience working in public health. She has overseen surveillance, program implementation and management, monitoring and evaluation, informatics, and data analysis and dissemination at the local, federal, and international level. She focuses on HIV, tuberculosis, COVID-19, and other infectious and non-infectious diseases.

Joe Baweja is the Abt Digital Public Health Lead with over thirty years of experience in software development, IT solutions, and project and portfolio management. Baweja supported the Centers for Disease Control and Prevention (CDC) for 20 years, and the intelligence community for nearly 10, in developing and delivering IT solutions that enable clients to better meet their mission. Joe has led a division with over $40M in annual revenue and 175 people, including the integration of a team gained via an acquisition, and strived to foster an environment of delivering innovative solutions to meet the customer needs. He is a project management professional and certified scrum master, and has participated in three Capability Maturity Model Integration (CMMI) level 2 and 3 successful certifications.  Baweja has also collaborated with U.S. Congressional staff during appropriations season as a subject matter expert for public health projects in over 100 meetings on Capitol Hill.

Kelly Wagner has over 25 years of experience designing and delivering technical assistance, training, and capacity building. A skilled public health professional trained in epidemiology, she has developed and led more than 10 national TA programs for federal awardees from various agencies including the Substance Abuse and Mental Health Services Administration (SAMHSA), the Health Resources and Services Administration (HRSA), and offices within the Department of Health and Human Services Office of the Assistant Secretary for Health (OASH). Wagner has worked with community-based organizations, health centers, academic institutions, and state/local health agencies, reaching target audiences with unique and diverse public health needs across the lifespan. 

Molly Irwin has more than 25 years of experience leading large-scale research and evaluation efforts and working with policy makers, researchers, and practitioners to build and use evidence. Irwin has worked to improve public programs and policy outcomes in workforce development, child and family well-being, public health, and conservation, most recently as the Pew Charitable Trusts’ vice president of research and science. She spent over 10 years in the federal government in the Department of Labor (DOL), where she served as the chief evaluation officer, and in the Administration for Children and Families. She has also overseen major initiatives in state and local government and academia.

Dr. Sebastian Lemire is an evaluation expert with decades of experience designing and managing evaluations of education and workforce development programs. He has extensive experience with a broad range of evaluation approaches, quasi- and non-experimental designs, qualitative and quantitative data collection and analysis methods, as well as systematic evidence reviews.

Jane Pepperall is a senior health professional with over 30 years of experience in global health policy development and in supporting national health sector development in the Pacific, Asia, and Africa. She has focused on strategy and investments to strengthen health systems and health financing. Jane worked for the United Kingdom Department for International Development (DFID) (now the Foreign, Commonwealth and Development Office) for 20 years, including health adviser postings in Uganda, Kenya, Zimbabwe, Lesotho, Pakistan, and the Pacific. More recently she has been providing health strategy, policy, and technical advice to the Australian Department of Foreign Affairs and Trade (DFAT).

Francesca Lawe-Davies is a senior development specialist with more than 18 years of experience in government, non-government, private sector, and multilateral development organisations. She has broad experience leading teams in complex development programs across Southeast Asia and the Pacific. Francesca has worked with government and civil society leaders at all levels, providing strategic and technical advice and guiding programmatic support on education policy and delivery, decentralisation, village governance, peacebuilding, and gender-based violence prevention and response services.

Allan Duncan has more than 20 years of experience in designing and managing large, complex programmes in Africa and Asia. His work has cut across a number of areas, including climate change, institutional development, governance, and capacity building. He has managed multidisciplinary, culturally diverse teams that delivered high-quality results in challenging environments. He has worked extensively in Africa and South Asia for such clients as the UK’s Foreign, Commonwealth and Development Office (FCDO) and Australia’s Department of Foreign Affairs and Trade.

Niko Dietsch has 20 years of experience working on domestic and international government initiatives to support the clean energy transition and improve air quality. Dietsch has expertise in clean energy policy evaluation, federal voluntary program delivery, and international capacity building. He spent 16 years at the U.S. Environmental Protection Agency’s (EPA) State and Local Branch working to advance clean energy as a strategy to help states meet their clean air and climate change requirements. This included playing a lead role in developing the energy efficiency provisions of EPA’s Clean Power Plan and establishing regulations that allow states and cities to include renewables and energy efficiency in their Clean Air Act (CAA) plans.