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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. James White, a registered nurse and Collaborative Specialist in Global Health (CSGH), is a senior health specialist with a focus on infectious disease and global health security (GHS). He has over 20 years of experience that includes delivery of emergency response programs in emergency and fragile settings, pandemic preparedness and response, health systems strengthening, and public-private collaboration for GHS. White has worked in more than 20 countries in Africa, Asia, and Latin America assisting in both acute outbreak response and preparation for health emergencies. He also represents Abt as a technical expert on external GHS and pandemic preparedness working groups. His clients have included the U.S. Agency for International Development (USAID), the United Kingdom’s Foreign Commonwealth and Development Office (FCDO), and the Canadian International Development Association (CIDA) (now Global Affairs Canada).

Shelly Spoeth brings more than 25 years of strategic communication and social marketing experience to tackling complex health and social issues.  She  worked for a decade with pharmaceutical and biotechnology clients while at public relations firms including Ketchum, FleishmanHillard and Cohn & Wolfe. She then worked as a consultant for government and nonprofit clients, including the Centers for Disease Control and Prevention (CDC), on behavioral change challenges ranging from HIV/AIDS to COVID-19. Spoeth has implemented, evaluated, and managed dozens of projects that improved health outcomes. Her capabilities include formative research and digital outreach.

Dr. Fiona Mactaggart is a multi-disciplinary technical advisor with more than 10 years of experience in monitoring, evaluation, research, and learning (MERL); infectious disease control; and public health. As a co-lead of Abt's MERL portfolio, she draws on complexity theory and scientific methods to help clients test what works, discover why it works, and provide timely evidence-based recommendations to inform important decisions about policy and practice. Mactaggart contributes to business development, programme delivery, and thought leadership. She works in five key areas: monitoring (e.g., design of digital tools and visualisation platforms) research (e.g., cross-sectional survey design), evaluation methodologies (e.g., contribution analysis), learning (e.g., portfolio level evidence-informed strategic decision making), and cross-cutting MERL capabilities (e.g., adaptive management and GEDSI). Mactaggart has worked extensively in the Pacific and Southeast Asia.

Sean McClellan, Ph.D. is a mixed-methods researcher with over a decade of experience in full cycle health services research. He has experience managing research projects, developing analytic designs, cleaning and analyzing administrative data, fielding rigorous surveys, conducting qualitative interviews, and communicating findings in plain language.

Mbuso Jama has more than 17 years of experience as a Monitoring Evaluation Accountability Research and Learning expert (MEAL and MERL). His work has involved humanitarian, rehabilitation, and development efforts in Africa, Asia, and Eastern Partnership countries. His experience ranges from designing MEAL systems for adaptive management to impact evaluations. He has worked on projects funded by the Foreign, Commonwealth & Development Office (FCDO), United Nations, US Agency for International Development (USAID), Canadian International Development Agency, Department of Foreign Affairs and Trade, European Union, and European Civil Protection and Humanitarian Aid Operations.

Jessica Gillmore is an international and community development professional with more than 20 years of experience working in Asia and the Pacific. She has expertise leading teams and managing complex donor programs across a diverse range of sectors including health, gender and women’s empowerment, community-driven development, education, governance and law and justice. She is highly skilled in program design, strategy development, research and evaluation and building stakeholder relationships with government, non-government, civil society and private sector organisations.

Paulina Giusti is a pediatrician with over 30 years of managerial and clinical experience in the public health sector in Peru. She has been Vice Minister of Health, Chief of Staff for the MoH, Head of a government public health project to improve maternal and child health, among other positions. She has deep experience in health systems strengthening, being part of the design and initial implementation of a health sector reform in Peru between 2012-14. She has worked with high and mid-level authorities, international cooperation and with local healthcare providers.

Lisa Tarantino has 25 years of experience designing, managing, and evaluating complex global health and development programs. She has managed global, regional, and national initiatives for health finance, system strengthening, and private sector financing in 20+ countries. Lisa is a thought leader in sustainable approaches that enable transition from development partner support. Lisa has been a professor and advisor to the Columbia University School of International and Public Affairs’ Economic and Political Development program and the Johns Hopkins’ School of Advanced International Studies’ International Development program.