Sonia Park

Executive Director

Sonia has over 20 years of experience in school start-up, support, accountability and development.

She has a background in organization and school development, support, and accountability in relation to school-based, district, state and federal policies and practices. Sonia joined the Coalition after her appointment with Secretary John King at the US Education Department concluded. She served as a Senior Policy Advisor in the Office of Innovation and Improvement where she worked on policies concerning charter schools and provided guidance forRace to the Top-District grantees. Prior to joining the ED, she had the pleasure of being the Executive Director of Manhattan Charter Schools, a two-school charter network located in NewYork City.

Sonia has also worked with Chancellor Denis Walcott of the New York City Department of Education as the Executive Director of Charter Schools, Accountability, and Support. Her work experiences include the National Foundation for Teaching Entrepreneurship, NY Charter Schools Resource Center, NY Charter Schools Association, and Edison Schools. She’s presented at statewide, regional, and national charter schools conferences and has been a national a peer reviewer.

She has board membership on two community based non-profit organizations in New York and is a strong believer, and product of, public school education.


Dave Bryson

Deputy Director

Dave Bryson was the Director of Operations of Bedford Stuyvesant Collegiate, part of the Uncommon Schools network in Brooklyn, NY from 2012-2017.

During his time at BSC he helped lead the school toward increased student achievement, enrollment, staff retention, staff racial diversity, special education services, family engagement and decreased student suspension. Most recently, he worked on behalf of the Enroll West Contra Costa initiative supporting all families in the West Contra Costa Unified School District to find the right school for their child. Prior to joining Uncommon Schools, Dave helped found a pioneering expanded learning time program at the Edwards Middle School in Charlestown, MA that became the model for Citizen Schools’ national expansion.

He has also worked at Breakthrough Collaborative as a partnership coordinator with organizations like Teach for America, MATCH Teacher Residency and Aspire Teacher Residency. Dave earned his B.A. from Wesleyan University and his M.Ed from Lesley University. Dave lives in Berkeley, CA where he equally enjoys hiking the hills and biking the flats.

He is humbled to be joining the DCSC team and is inspired by the vision of inclusion, high-quality academics and spirit of collaboration within the coalition.


Ashley Heard

Managing Program Director

Ashley started her career as a special education teacher in Washington, DC.

After teaching, she worked as a teacher coach with Teach For America, supporting secondary special education teachers. In 2011, Ashley moved to Chicago to attend law school. During school, she worked with Chicago Public Schools as an Education Pioneer Fellow and for the Illinois Network of Charter Schools consulting with community members starting charter schools.

In 2014, Ashley returned to her hometown of Baton Rouge to serve as the Director of Strategy and Innovation at New Schools for Baton Rouge. There she managed the organization’s $10,000,000 human capital strategy and innovative schools portfolio. Later, Ashley founded Ashley Heard Consulting, providing strategic planning and fundraising support to education and social services nonprofits.

Ashley holds a BA from Vanderbilt University, a MA from American University, and a JD from Loyola Chicago School of Law. She is a member of the Baton Rouge Business Report’s “40 Under 40”, the Baton Rouge Junior League, and a mentor through the Baton Rouge Youth Coalition. She also serves on the advisory board of the New Orleans-based Special Education Leadership Fellowship. In her free time, Ashley practices yoga, fusses at her poorly behaved dog, Annabel, and attempts home renovation projects.


Seon Britton

Program Coordinator

Seon has spent his career in the social justice sector starting as a corps member with Teach For America teaching 6th and 7th grade reading in Arkansas.

He then transitioned to being a Recruitment Manager for TFA, overseeing recruitment campaigns across universities in New York, New Jersey, and Connecticut. His TFA experience led him to become the Program Manager for the mayoral initiative, NYC Men Teach, based at the New York City Department of Education leading its recruitment efforts in successfully achieving the goal of adding 1,000 male teachers of color to NYC’s public schools between 2015 and 2018 under Mayor Bill de Blasio.

In this role, he collaborated with university Deans across 15 junior and senior campuses under the City University of New York (CUNY) to manage university programming, the NYC DOE Charter School Office to expand the partnership between NYC public and charter schools to hire more diverse teachers, and grew the initiative’s portfolio of community-based organizations (CBOs) across 4 boroughs to create training and employment opportunities for pre-service male teachers of color in after-school settings.

Seon’s work has intentionally put a focus on bringing a lens of diversity, equity, and inclusion (DEI) to organizational operations, practices, and values. Seon is currently working on his PhD in sociology studying how non-profits, grassroots organizations, and socially-conscious companies can have an impact in pushing for broader social change.


Amy Jiravisitcul

Data & Evaluation Manager

As an educator, Amy sought out institutions that prioritized educational equity for systemically marginalized communities.

She taught foreign language in a rural elementary school in southern China and an urban public charter school of Boston. After transitioning from classroom teaching, Amy advised middle school students in Boston at The Steppingstone Foundation, while also facilitating summer and academic year programs that prepared underserved students to select and thrive in Boston’s best secondary schools.

Amy is a proud daughter of Chinese heritage parents who arrived in the US in the 1980s as refugees from Southeast Asia. Although Amy’s parents hail from Savannakhet, Laos and Bangkok, Thailand, Amy grew up in a predominantly white suburb of Milford, Connecticut. She wields a passion for social justice organizing and currently serves on the Board of Directors for Asian American Resource Workshop, a Boston-based API community organization.

Amy earned her B.A. from the University of Rochester and Ed.M. from the Harvard Graduate School of Education. Upon completing her graduate degree, Amy entered the 2019-2021 cohort of Strategic Data Project Fellows with the Harvard Graduate School of Education’s Center for Education Policy and Research. In her free time, she enjoys discussing racial identity, making pizza dough from scratch, and getting lost in everyone’s Instagram stories.

The Coalition’s Board of Directors

Veronica Brooks-Uy, Board Chair

Veronica Brooks-Uy is the Director of Policy for the National Association of Charter School Authorizers (NACSA). She started her career as a middle school science teacher and has worked at the Louisiana Department of Education in the authorizing office, served as the Policy Director for the Louisiana Association of Public Charter Schools, and was a Consultant at Public Impact.

Through these experiences, she has learned a lot about quality authorizing, as well as improving the charter sector through policy reform. At NACSA, she works with national, state, and local partners to pass and improve charter school laws and regulations. Veronica holds a Master of Public Policy from George Washington University and a Bachelor of Arts degree in Psychology from the University of Virginia.

Deborah McGriff

Deborah McGriff, Ph.D., is a former managing partner at NewSchools Venture Fund where she focused on closing the demographic gap between students and executive leaders and governing boards. She co-led NewSchools’ Diverse Leaders strategy, focused on fostering the creation of strong talent pipelines so that Black and Latino leaders represent at least 40% of education leadership by 2020.

Previously, Deborah worked as the executive vice president and chief relationship officer of Edison Schools. She was the first public school superintendent to join Edison Schools in 1993. At Edison, she held numerous positions, including president of Edison Teachers College and executive vice president of charter schools. Prior to Edison, Deborah served as the first female general superintendent of the 200,000-student Detroit Public Schools, where she successfully opened 25 schools of choice and expanded decentralization. Crain’s Detroit Business named her newsmaker of the year for 1992.

Before that, she was the first female assistant superintendent in Cambridge, MA, and the first female deputy superintendent in Milwaukee, WI. Deborah is a former president of the Education Industry Association and both a founder and national board member of the Black Alliance for Educational Options.

Halley Potter

Halley Potter is a senior fellow at The Century Foundation, where she researches public policy solutions for addressing educational inequality. Her work focuses on school integration, preschool equity, charter schools, and college admissions.

She is the coauthor, with Richard D. Kahlenberg, of A Smarter Charter: Finding What Works for Charter Schools and Public Education (Teachers College Press, 2014). Prior to joining The Century Foundation, Halley taught at Two Rivers Public Charter School in northeast Washington, D.C. She graduated summa cum laude from Yale University with a bachelor’s degree in religious studies.

Heather Lamm

Heather Lamm is Director of Marketing and Communications at DSST Public Schools, a network of 13 secondary charter schools that serve over 5,000 students in Denver. In her role leading Marketing and Communications, Heather oversees student recruitment, all internal and external communications, marketing, brand awareness and public advocacy efforts. Heather served on the Board of Directors at DSST for 8 years prior to joining the staff.

Prior to that, Heather was a Founder and Partner at Brushfire Sales, a Denver-based professional services firm helping companies understand and leverage digital technologies to grow revenue, market share, and presence in local markets. Heather was also an Executive Vice President at MediaNews Group, the fourth-largest newspaper company in the US, and the Vice President of Strategic Planning at San Francisco-based Standard Media International, publisher of the Industry Standard magazine.

Heather holds an MBA in entrepreneurship and organizational behavior from the Kellogg School of Management at Northwestern University, and a BA in political science from Brown University. She is a 2004 graduate of the Denver Chamber of Commerce Leadership Denver program.

Michael DeMatteo

Michael DeMatteo is the Chief Operating Officer at Blackstone Valley Prep (BVP) Mayoral Academy, a network of tuition­-free public schools currently serving just over 1,800 scholars in grades K-­12 across 6 schools. Mike is a registered architect with over fifteen years of professional experience in institutional facilities programming, planning, and design, specializing in K-­12 education.

Interested in more active engagement in the education sector, he shifted his professional focus to working within schools. He also served as a Fellow with Education Pioneers where he assisted the charter school, Alma del Mar, open in New Bedford, Massachusetts, and was a Broad Resident during his time with BVP. Mike holds a Master’s in Public Affairs from Brown University with a focus on Urban Education Policy.

Robert Reed, Jr.

Robert Reed, Jr. is the Senior Director of Legal Affairs for the National Alliance for Public Charter Schools, where he develops and implements legal advocacy efforts. He has over 14 years of experience as a litigator and policy leader. Prior to joining the National Alliance, Robert was a senior policy adviser with the Vera Institute of Justice. Before that, he was the Associate Director of Legislative Affairs for the White House Office of National Drug Control Policy (ONDCP).

Prior to joining ONDCP, Robert worked as oversight counsel for the U.S. House of Representatives’ Judiciary Committee, Assistant U.S. Attorney, senior judicial law clerk for then-Chief Judge Annice Wagner of the D.C. Court of Appeals, and as a litigation attorney with Miller & Chevalier in Washington, D.C. Robert holds a Bachelor of Arts, with honors, from Stanford University and a J.D. from the University of Virginia School of Law, where he received the James M. Shoemaker, Jr. award as a finalist in the Lile Moot Court Competition. He has served on KIPP DC’s inaugural associate board, as well as the board of the Luke Moore Academy in Washington, D.C.

Daniel Kikuji Rubenstein

Daniel K. Rubenstein is the co-founder and Executive Director of Brooklyn Prospect Charter School. Since opening in 2009, Brooklyn Prospect has been dedicated to building and growing learning communities where excellent teachers prepare diverse student bodies to have a positive impact on society and a lifelong passion for learning. In addition to his work with Brooklyn Prospect, Dan has been instrumental in forming the Diverse Charter Schools Coalition, a group of over 30 charter organizations and advisors dedicated to creating successful, integrated public choice schools.

An educator since 1992, Dan has served in various teaching and administrative roles at Collegiate School (New York), SEED Public Charter School (Washington, D.C.), Sidwell Friends School (Washington, D.C.), and School Year Abroad (Beijing, China). In 2002, Dan received the Presidential Award for Excellence in Mathematics Teaching for his work at SEED, and his achievements with charter schools have been documented in USA Today and Education Next, as well as on ABC’s “Nightline” and PBS’ “Life 360.” He holds masters degrees from Columbia University’s Teachers College and St. John’s College and a bachelor’s degree in mathematics from Hamilton College.

Mike Chalupa

Mike Chalupa serves as the Director of City Neighbors Foundation, which oversees all three City Neighbors schools (City Neighbors High School, 9-12, City Neighbors Hamilton K-8, and City Neighbors Charter School, K-8). Mike has served as Academic Director of the City Neighbors Foundation for the last eight years, co-founded City Neighbors Hamilton and City Neighbors High School, and led City Neighbors Charter School as Principal for eight years.

Prior to his role at City Neighbors, Mike served as the Executive Director of The GreenMount School and Dean of Students for St. John’s Episcopal School. Mike has also served as a classroom instructor in grades 4 through 8 and program coordinator for immigrant youth and homeless youth. Currently, Mike also serves as a Board Member on the Maryland Alliance of Public Charter Schools, the Co-chair of the Baltimore Alliance of Public Charter Schools, and Advisory Board member for the DaVinci Collaborative, an emerging charter high school in Baltimore. Mike earned his Masters in School Leadership from the Harvard Graduate School of Education and his Bachelor of Arts in English and History from Georgetown University.

Andrea Arroyo

Andrea has spent over 15 years as a manager, strategist, and advocate in the nonprofit and economic development sectors, including as Vice President of Policy and Advocacy at Georgia Charter Schools Association and serving as Director of New Site Development and Community Engagement with Citizens of the World Charter Schools. As the Director of New Site Development and Community Engagement, she successful cultivated relationships and built advocates among community members, elected officials, school leaders and parents in more than 11 cities.

Andrea has also served as Director of Grants at LA’s Promise, helping to secure over $4 million of funding from private foundations, public agencies, corporate partners and other supporters to enhance educational initiatives at LA’s Promise schools. Before that, she served as Managing Director of District and School Partnerships at Teach For America. Andrea previously worked at two consulting firms focused on integrated real estate advisory and affordable housing services. She assisted in the development of over 45 affordable housing projects and advised clients to help them make strategic investments and improvements in their communities.

In addition, Andrea spent two years as a 2nd-grade teacher at Saul Martinez Elementary School in Mecca, California. Andrea earned a Masters in Public Policy from the University of Southern California and a Bachelor of Arts in Political Science and Sociology from Pitzer College. She is an alumna of the CORO Fellowship in Public Affairs.

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