Staff

Jack Clark

Jack Clark

Executive Director

301.565.4716

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With over 20 years’ experience in government workforce development systems and sector development work, Jack brings deep expertise in the areas of worker training and career ladders.  A Ford Foundation/Kennedy School of Government Award for Innovations in State and Local Government winner, prior to joining the Center, Jack served as Deputy Director in the Mayor’s Office of Jobs and Community Services in Boston, MA

Xinge Wang

Xinge Wang

Deputy Director

301.565.4715

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Xinge is a respected practitioner of human capital solutions and senior analyst of labor market trends and workforce analytics.  She is the lead author of the Center’s groundbreaking Metrics of Success series, and has led several DOT, DOL and TCRP research and implementation projects. She holds a Masters in HR and Industrial Relations from Penn State and is a certified Professional in Human Resources.

Liz Waller

Liz Waller

Director of Finance

240.485.2285

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Liz has 25 years of extensive accounting experience in the public accounting and non-profit sectors.  She began as an auditor with KPMG Peat Marwick and then spent 15 years with the AFL-CIO Working for America Institute as the Senior Accountant on staff.

Patricia Greenfield, PhD, JD

Patricia Greenfield, PhD, JD

Senior Program Director - Workforce Education

301.565.4713

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Pat brings to the Center over three decades of experience in labor, management, and workforce education at the U Mass. School of Management and the National Labor College. Her current work focuses on supporting career pathways for youth and community members for frontline positions in transit and connecting transit training programs to colleges so workers can also have a pathway to a degree.

Joyce E. Williams

Joyce E. Williams

Office Manager

240.485.2296

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As the Center’s Office Manager, Joyce works as the glue holding everything together. In addition to typical office management functions, Joyce coordinates travel and logistics for the Center’s national committees.  She joined the Center after serving as Office Manager at the Trust for Public Land.

Amri Joyner

Amri Joyner

Senior Instructional Design Associate

240.485.2288

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Before starting as Center staff in June 2016, Amri was an Instructional Design consultant with the Center for five years. She started as a consultant with over 20 years of experience teaching, facilitating groups, and designing learning at Montgomery College, American Nurses Association, Wilmer-Hale law firm, and the UFCW International union. Her areas of training include information technology, union skills, and staff development. Amri holds a Masters in City Planning degree from the Massachusetts Institute of Technology and a BA in Geography and Sociology from the University of the West Indies.

Kenyon Corbett

Kenyon Corbett

Program & Communications Associate

240.485.2292

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Originally from the Baltimore area, Kenyon has also lived in Maine, San Francisco and the Czech Republic. He now calls Washington, DC home. Kenyon has experience working in communications for a public radio affiliate in Baltimore as well as with international Non-Governmental Organizations. He also brings strong research and writing skills to the Center. Most recently Kenyon served as a Senior Project Coordinator helping to oversee a large USAID funded project grant in the Middle East and North Africa focused on peacebuilding and conflict transformation.  Kenyon has a bachelor’s degree from the University of Maryland Baltimore County in Media and Communications Studies. He also has training as a video editor. While not trying to learn all he can about the transportation world, he enjoys working in his garden, traveling and cooking.

John Schiavone

John Schiavone

Program Director

203.650.1569

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John Schiavone has been involved with transit bus maintenance and technology for nearly 40 years.  He served on the APTA staff, authored several Transportation Research Board studies, and is now working with the Transportation Learning Center to advance front-line worker training and apprenticeships.

Karitsa Holdzkom

Karitsa Holdzkom

Project Associate

240.485.2291

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Karitsa has a background in community and urban planning along with housing and transportation research.  She received her Master’s in Community Planning from the University of Maryland, College Park and her BA in Political Science from the University of Maryland Baltimore County.  Karitsa has a passion for traveling in general and for public transportation in particular.  Karitsa is a Project Associate at the Transportation Learning Center and her work focuses on the Center’s participation in the American Apprenticeship Initiative.