Our People

Ryan Mullins - Executive Director

Professor Mullins oversees the overall strategy and growth of SIP. In this role, he helps curate and support all sales program offerings to provide value to students, faculty, industry and all Clemson stakeholders.

Mullins is also an award-winning author, professor and consultant focused on helping organizational leaders improve sales performance. Mullins seeks out industry collaboration and has conducted research and consulting projects with Fortune 500 companies, providing analysis, recommendations, coaching and training interventions. This real-world engagement has helped Mullins be recognized as a noted researcher and insightful speaker to sales organizations and enabled the delivery of innovative teaching in SIP courses.

Carter McElveen - Director of Operations

After eight years in sales with Eli Lilly, Carter returned to Clemson to teach in 2011. As Operations Director for SIP, McElveen coordinates our corporate partner program. She plans and executes engagements alongside our SIP Program Manager for Engagement. McElveen also teaches our Introduction to Professional Selling and Capstone Selling Courses. Her students are very involved with hands-on learning, including selling for the Elevate Sales Conference and the Tiger Paw Classic Golf Tournament.

McElveen was named an Alumni Master Teacher in 2016 and a part of the 2020 President's Leadership Institute Cohort. She currently advises the Blue Key Honor Society, is a Delta Sigma Pi Faculty Initiate and is the president of the Fort Hill Clemson Club, the local Clemson Alumni group. Carter and her husband, Andy ('03), live in Clemson with their two children, Nora Lynn (9) and Willis (4).

David Sturkey - Director of Development

Charleen Fitzgerald - SIP Student Services Coordinator

Charleen Fitzgerald earned her Bachelor of Science in Marketing from Clemson University in 1997. She joined Clemson University's Department of Marketing as a Student Services Program Coordinator in 2015. Most recently, in January 2025, she started a new role as Signature Programs Operations Manager for the Powers College of Business. Fitzgerald was awarded Team Player of the Year for the Wilbur O. and Ann Powers College of Business in 2017, received the Staff Award for Student Service for the College in 2020-2021 and the Staff Excellence Award in 2023-2024. She will assist in student engagement, event logistics, alumni/partner relations, curriculum support and various other roles.

Lisa Beeler - SIP Research Faculty

Lisa Beeler is a sales researcher who publishes in top academic sales journals and continues to conduct research with companies globally. In SIP, she works with corporate partners to help optimize sales force compensation, training, technology adoption and hiring, amongst many other sales force initiatives. Before becoming an academic, she was the director of marketing and sales for a B2B international parking company in Atlanta, GA. Her 20 years of experience in sales research and application informs the experiential-based learning approach she uses in her classroom to prepare SIP students to be great salespeople, valuable co-workers and good citizens.

Alec Pappas - SIP Research Faculty

Alec Pappas is an Assistant Professor of Marketing at Clemson University. His research interests include marketing strategy, sales and intraorganizational social networks. Pappas graduated in 2021 from Florida State University with his Ph.D. in marketing and began his academic career at Washington State University.

Prior to academia, Pappas worked in Philadelphia, Pennsylvania, as a mortgage closer at Wells Fargo. He then moved to his hometown in Boca Raton, Florida, and worked as an account manager at MotionPoint. At MotionPoint, Pappas developed a robust knowledge of website construction and design while he managed relationships with approximately 50 Fortune 1000 companies. In his free time, Pappas enjoys photography, reading, coding and remaining physically active with exercise and sports.