Assistant Superintendents and Officers

  •  AJ Muttillo headshot

    Assistant Superintendent for Human Resources
    A.J. Muttillo |

    Dr. Muttillo is proud to have served the Wake County Public School System for his entire career in education. After beginning his career in 1997 as a middle school English teacher, he has held a variety of school-based leadership roles, including tenures as a middle school and high school principal.  Dr. Muttillo holds degrees in Bachelor of Science in Secondary Education from East Stroudsburg University (PA), Master of School Administration from North Carolina State University, and Doctor of Education from the University of North Carolina at Chapel Hill.   

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  •  Paul Koh

    Assistant Superintendent for Student Support Services
    Paul Koh |


    Paul Koh oversees the Counseling and Student Support, Office of Early Learning, Student Due Process, and Alternative Education teams. Prior to entering his role in WCPSS, Paul spent 17 years in the Bay Area as a history teacher, assistant principal, principal, and principal supervisor. Paul is proud of his Korean-Immigrant heritage, his experiences as a learner at UC Davis, UC Berkeley's Principal Leadership Institute, and anticipating his doctoral degree from East Carolina University’s International Ed.D. program in 2023.

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  •  Drew Cook

    Assistant Superintendent for Academics
    Drew Cook |


    A Wake County native and the son of a long-time WCPSS educator, Drew Cook began his career as a social studies teacher and coach at Garner Magnet High School in 1997. He served as an Assistant Principal and then Principal of Garner Magnet High from 2005 to 2014. He was named the WCPSS Principal of the Year in 2011 and the North Carolina High School Principal of the Year in 2012.  Prior to becoming the Assistant Superintendent for Academics in 2019, he served in Central Services for several years as the Senior Director for High School Programs.  Mr. Cook holds a Bachelor of Arts degree in Political Science from UNC-Wilmington and a Master of School Administration degree from North Carolina State University.

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  •  Photo of Bradley McMillen, Assistant Superintendent Assistant Superintendent for Data, Research, and Accountability
    Bradley McMillen |

    After receiving his Masters and PhD in Education from the University of North Carolina, Dr. McMillen has held research and evaluation positions at both the state and local school district level since 1999. He has served in leadership roles for professional organizations related to educational research and assessment at the state and national level, including the North Carolina Association for Research in Education and the Directors of Research and Evaluation. Dr. McMillen has given numerous presentations to professional and community groups and published studies on a number of education topics, including school size, year-round schools, the achievement gap, and equity issues in course placements and related student outcomes.

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  •  Photo of Mark Winters, Finance Officer Finance Officer
    Mark Winters |

    Mark Winters became WCPSS's finance officer in 2000. His previous service to the school system's accounting department includes senior director from 1998, director from 1992, associate director in 1992, and accounting supervisor in 1991. Before joining the school system he was controller of Caroline Management Corporation.

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