Executive Education Staff

Meet the Executive Education Programs Staff

Questions about our programs? Interested in a custom program for your organization? Contact us at execdev@gmu.edu or call (703) 993-6725. 

  • George Mason University Costello College of Business Placeholder Image

    Assistant Director of Operations, Executive Education

    Barbara Agan is the Assistant Director of Operations for Executive Education in the Costello College of Business at George Mason University. She is responsible for the oversight, execution, coordination, implementation, and monitoring of open-enrollment and custom executive education programs. 
  • George Mason University Costello College of Business Staff Rhonda Barton

    Director, Business Development, Executive Education

    Rhonda Barton is the Director of Business Development in the Costello College of Business at George Mason University.  She joined George Mason's Executive Education group in May of 2020 and brings a wealth of executive education experience to the team.
  • George Mason University Costello College of Business Staff Aubrey Byrum

    Program Coordinator, Executive Education

    Aubrey Byrum is the Program Coordinator for Executive Education in the Costello College of Business at George Mason University.
  • George Mason University Costello College of Business Staff Whitney Caldwell

    Assistant Director of Learning, Executive Education

    Whitney Caldwell is an Assistant Director of Learning for Executive Education in the Costello College of Business at George Mason University.
  • George Mason University Costello College of Business Faculty Brett Josephson

    Associate Dean for Executive Education
    Additional Roles: Associate Professor, Marketing

    Brett Josephson is the associate dean for Executive Education and an associate professor within the marketing area in the Costello College of Business at George Mason University.
  • George Mason University Costello College of Business Staff Ashley King

    Marketing Manager, Executive Education

    Ashley King is the Marketing Manager for Executive Education in the Costello College of Business at George Mason University.