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Leadership Team

Graziadio Business School


Deryck J van Rensburg Dean

Deryck J. van Rensburg


Deryck J. van Rensburg is the ninth dean of the Graziadio Business School, having joined Pepperdine University in 2016. He brings 32 years of global business experience with The Coca-Cola Company and Unilever PLC. Recently at Coca-Cola, he was President of Global Ventures reporting to their Chairman and CEO. Dean van Rensburg holds a DBA from the University of Manchester, an MBA with distinction from the University of Bath, and a Bachelor of Commerce degree from Rhodes University.

Arman Davtyan

Arman Davtyan, EdD

Assistant Dean, Enrollment Management

Dr. Arman Davtyan serves as assistant dean of enrollment management at Graziadio. Prior to this role, he served as executive director of student academic services. His career in higher education encompasses a variety of other administrative roles in student affairs, campus operations, and admissions at both undergraduate and graduate program levels. He holds a master’s degree in counseling and personnel services from the University of Maryland, and a doctorate in educational leadership from UCLA.


Charla Griffy-Brown, PhD

Charla Griffy-Brown, PhD

Associate Dean, Part-Time and Executive Programs

Charla Griffy-Brown is an accomplished professor, board member and consultant who leads transformational change. She works extensively in the area of digital innovation helping organizations leverage new opportunities through analytics, risk evaluation, and emerging technology deployment to achieve their strategic objectives. She also has extensive experience working with executives in the area of information security. Her track record includes working with C-level executives and boards for public and private companies across different verticals including manufacturing and services industries.

Spencer Hardman

Spencer Hardman

Assistant Dean, Finance and Administration

Spencer Hardman previously led the finance, financial aid, and student accounts departments at Pepperdine’s Graduate School of Education & Psychology through the implementation and growth of the school’s hugely successful transformation that has added $64 million of revenue and over 1,400 students in under 5 years. He also served as the school’s primary point of contact with 2U, Inc., for budgets, enrollment forecasting, financial analysis, and related matters. Spencer is an alumnus of the Graziadio MBA program where he majored in finance.

Bernice Ledbetter

Bernice Ledbetter, EdD

Dean, Students and Alumni Affairs

Dr. Bernice Ledbetter is dean of students and alumni affairs, practitioner faculty of organizational theory and management, and director of the Center for Women in Leadership at Pepperdine Graziadio. She is an award winning teacher, and recipient of the Howard A. White Award for Teaching Excellence, and the George Award for Outstanding Faculty Member. A recognized expert on the topic of women in leadership, Dr. Ledbetter led a team in securing a Waves of Innovation grant to launch the Center for Women in Leadership at Pepperdine where she serves as the Center's director.

Claudio Ludovisi Assistant Dean Strategic Innovation, Marketing and Alumni Relations

Claudio Ludovisi, MBA

Assistant Dean, Marketing, Strategy, and Corporate Relations

Mr. Claudio Ludovisi brings to Graziadio over 25 years of global business experience and leadership roles with Disney, NBC Universal, IMAX, Amgen, and Warner Bros. Studios. He is a senior strategy and marketing executive as well as a recognized thought leader of fan engagement, and is passionate about leading teams to extraordinary results in an "accelerating, digital, purpose-driven" world. Claudio holds an MBA from the Kellogg School of Management at Northwestern University and a bachelor of arts degree in economics from UCLA.

John Paglia Senior Associate Dean of Academic Affairs

John Paglia, PhD

Sr. Associate Dean, Academic Affairs

Dr. John K. Paglia is senior associate dean of academic affairs and professor of finance at Graziadio Business School. He is also an independent corporate director (board member) and audit committee chair for Simulations Plus Inc. (NASDAQ: SLP), and advisor to several startups. He previously served PGBS in a number of leadership roles over his eighteen year tenure at Pepperdine. He also served as associate dean for part-time (fully employed) programs, director of accreditation, chair of the accounting and finance department, and founding director of the Pepperdine Private Capital Markets Project.

Abraham Park, PhD

Abraham Park, PhD

Associate Dean, Full-Time Programs

Dr. Abraham Park is associate dean of full-time programs and an associate professor of finance at Pepperdine Graziadio. Dr. Park has over 12 years of experience in law, a Silicon Valley technology start up venture, management consulting, hedge funds, and global real estate finance. He has worked and lived in the U.S., Asia, and Europe. Dr. Park holds a PhD from University of Cambridge, M. Phil. from University of Cambridge, JD from U.C. Berkeley, MPP from Harvard University, and a BA from UC Berkeley.