Our Team

Chris DeWitt – Manager, School Development 

Bornchris in Houston, Chris spent his first 14 years bouncing around various locales in the south and abroad with his folks and two siblings. In 2004, he moved to DC to attend American University, graduating in 2008 with a degree in Communications. That fall, Chris began teaching 1st grade at St. Ann’s Academy, moving to 4th grade three years later. Always interested in a systems-level view of education, Chris moved to Denver in the fall of 2013 to see how innovative and data-driven practice can drive equity in an urban district. In his free time, Chris loves to run in the mountains and play music.

(720) 423-3260 | Christopher_DeWitt@dpsk12.org


Jennifer Holladay – Executive Director, Portfolio Management

Jennifer jenis the Executive Director of the Portfolio Management Team. Jennifer has been a member of Team DPS since 2014, serving as director of school development and support and leading authorizing practices for new charter and district-managed schools. Prior to joining DPS, she worked in Adams 14 and served as the board chair of Highline Academy Charter School. She spent nearly 15 years at a national civil rights organization, the Southern Poverty Law Center, where she served as education director and later as the senior adviser for strategic affairs. She is mom to one daughter, Zoe, who is being served successfully by a DPS innovation school.

(720) 423-3709 | Jennifer_Holladay@dpsk12.org


Bailey Holyfield - Manager, Tiered Quality Assurance

baileyBailey is the Manager of Tiered Quality Assurance, and is responsible for supporting Tiered charter schools. She began her journey in education as a 2010 Dallas-Fort Worth Teach for America corps member at a turnaround school in Pleasant Grove teaching high school English to students who had failed to pass the state English Language Arts and Reading exit exam. Subsequently, Bailey served as a Teacher Advancement Program mentor teacher and secondary humanities instructional coach in Dallas before moving to San Antonio to take a position as the Director of Teaching and Learning for South San Antonio Independent School District. In her role in South San Antonio, Bailey supported principals through executive coaching around instructional leadership, led curriculum development for core content programming K-12, and created the instructional facilitator and instructional coaching programs for the district. Bailey received Bachelor’s degrees in English and Corporate Communications & Public Affairs from Southern Methodist University in Dallas, will complete a M.A. in Educational Leadership and Policy Studies from the University of Denver in March, and holds a Colorado Principal License.  In her free time, Bailey enjoys live music, cooking, and playing with her two dogs.

(720) 423-2371 | Amanda_Holyfield@dpsk12.org


Maya Lagana – Director, Strategic Support & Accountability


Maya is the Director of Strategic Support & Accountability, where she leads the work to review, assess, and renew both charter and innovation schools in the district. Prior to joining the Portfolio Management Team, Maya worked at the New York Charter Schools Institute, a statewide charter authorizer that is recognized for its quality authorizing work. There she served as the Institute’s Accountability and School Evaluation Analyst, responsible for analyzing student achievement data and coordinating site visits for the Institute’s 80+ charter schools. She started her career as a New York City Teaching Fellow, teaching third grade in the Bronx, before moving to Washington DC where she worked on several key education policy issues, including alternative teacher certification. She has also worked for Achievement First and Boston Collegiate Charter School, concentrating on fundraising and data systems. Maya holds a BA from Carleton College, a Masters in Elementary Education, and a Masters in Public Administration from NYU.

(720) 423-2588 | Maya_Lagana@dpsk12.org


Matthew Lanz – Data Analyst

Matt is a data analyst for the Portfolio Management Team. He graduated from UC Santa Barbara in 2010 with a degree in Mathematics and then joined Teach for America and moved to Navajo Nation in New Mexico. While in New Mexico, he taught 8th grade math, coached basketball, and lead his school’s MESA program. In 2013, he moved to Denver and taught 7th grade math and coached track at STRIVE Prep GVR. In 2014, he began working for Art of Problem Solving, a company focused on challenging gifted math students and preparing them for math competitions. During that time, he was also an adjunct math instructor at Red Rocks Community College.

(720) 423-2036 | Matthew_Lanz@dpsk12.org


Ashleigh Madonna – Specialist, School Development

Ashleigh ashleighis the School Development Specialist. She coordinates the review processes for new schools and new innovation schools. She also provides support to the School Development team. Ashleigh has worked with the Colorado League of Charter Schools as an Events Coordinator, Policy and Advocacy Intern and supported the School Services team. Prior to her work with CLCS, Ashleigh participated in the Urban Leaders Fellowship, a policy fellowship led by Colorado Senator Mike Johnston, where she worked on affordable housing policy for the 2015 legislative session. Ashleigh also taught Pre-Kindergarten for a year as a Rocky Mountain Prep Teaching Fellow. In the 2012-2013 school year, Ashleigh served as a City Year Denver Corps Member at a middle school in the Far Northeast. Ashleigh received her B.A. Peace and Justice Studies from Regis University in 2012 and is currently enrolled in graduate school at Regis University. Ashleigh is a proud Denver native and DPS graduate (Go Warriors!).

(720) 423-2482 | Ashleigh_Madonna@dpsk12.org


Angie McPhaul – Manager, Accountability

Angie is tangiehe Manager of Accountability for the Portfolio Management Team. Before DPS, she was in graduate school at The Harvard Kennedy School studying public policy. She concurrently consulted for The Campaign for Grade-Level Reading on state and local education policy. Angie taught Kindergarten at a public charter school with Teach for America in Prince George’s County, Maryland and worked supporting state-level child advocates at The Annie E. Casey Foundation in Baltimore. She holds as a B.A. from Stanford University.

(720) 423-2075 | Angie_McPhaul@dpsk12.org


Hannah Riviere-Platt – Manager, School-Based Flexibilities

hannahAs the Manager of School-Based Flexibilities, Hannah, in collaboration with other departments, oversees and supports the coordination of increased school-based decision-making across the District. Prior to joining DPS, she worked in operations and management at various start-ups, including a social and emotional learning solutions company. Hannah graduated from Hamilton College in upstate NY where she received her B.A. in Religious Studies. She initially grew up in France before moving to Philadelphia and understands firsthand the importance of language support. In her free time, Hannah is a mentor for a DPS student through Minds Matter and enjoys traveling, getting up to the mountains, cooking, and eating.

(720) 423-2591 | Hannah_Riviere-Platt@dpsk12.org


Joslyn Robich– Manager, Communications and System Building

Joslyn is the Manager of Communications and System Building. She started in education as an AmeriCorps member for a dropout prevention program in Boulder County before moving into higher education for five years. Joslyn then worked as a communications and project manager for the Colorado Charter School Institute, Colorado’s statewide authorizer for charter schools. Most recently, she worked as a project manager for the Colorado Department of Education. Receiving her B.A. in Biology from Ithaca College in central New York, she has since completed coursework for a Masters in International and Intercultural Communications focusing on education policy, conflict resolution, and project management from the University of Denver. Joslyn also sits on the board for a nonprofit that recruits and trains advocates for children in the Denver court system where she serves as the chair of the Marketing and Communications Committee. In her free time, she enjoys traveling, seeing live music, and attending community events.

(720) 423-3200 | Joslyn_Robich@dpsk12.org


Becky Zachmeier– Specialist, Accountability

As the Accountability Specialist, Becky will be supporting the Accountability team with the renewal and ongoing accountability processes. Becky’s past DPS experiences are as a classroom teacher who helped reopen the neighborhood, year-round school at Mitchell Elementary, a coordinator and licensing agent for the Brown Elementary International Baccalaureate Program, and a past school administrator at Brown and Cowell Elementary. Becky is a North Dakota native who came to Colorado to attend Regis University and decided to call Denver her home! Her major in sociology, minor in education, and Master of Arts in Curriculum and Instruction from the University of Colorado at Denver will serve her well in this role. Additionally, her three children attended and graduated from DPS schools.

(720) 423-3826 | Rebecca_Zachmeier@dpsk12.org


TBD, School Development Associate

TBD, Associate Director, Ecosystem and Support

Not sure who to call? See our Charter Partners or DPS Contact List