Trey Campbell
Trey Campbell
Chief Executive Officer

Trey Campbell brings more than 30 years’ experience in sales, operations, technology and general management to his dual roles as OneSource Virtual’s chief executive officer and a member of its board of directors.

Prior to becoming OneSource Virtual’s CEO in 2017, he was OSV’s president and chief operating officer. He also served as a member of OSV’s advisory board for three years, providing invaluable expertise to its board of directors during an unprecedented period of rapid growth.

During his tenure, he has firmly cemented OSV’s reputation as a global provider of services and solutions for the Workday application suite, with an emphasis on keeping the customer at the center of OSV’s focus.

In earlier roles, Trey served as the CEO for TwentyEighty Strategy Execution, president and CEO for Accenture BPO Services, president for NGA HR North America, business unit leader for Hewitt and vice president/GM for Exult.

Trey holds a Bachelor of Science degree in marketing from the University of Alabama and an MBA in finance from the University of Kentucky.

  • Connect with Trey Campbell on LinkedIn.
Cay Gliebe
Cay Gliebe
SVP, Marketing

Cay Gliebe brings a compelling emphasis on centralized communication to her role as OneSource Virtual’s senior vice president of marketing and product management.

As a thought leader in the marketplace, Cay leads a robust marketing department, a corporate sales development team that qualifies leads and a product development team specializing in new, market-wide product rollouts. Her position brings the voice of the customer together with our product and marketing functions to better determine OSV’s future direction and messaging.

Cay joined OSV in 2017 as vice president of communications, and assumed her current position in 2018. Leveraging over 30 years of experience in HR, sales, marketing, operations and product management, Cay successfully drives solutions that empower people and organizations to exceed their goals.

In 2011, Cay was recognized by the HROA as the North American Thought Leader of the Year. She has delivered interviews and presentations at market events, including MeetTheBoss TV, SAPPHIRE 2010, Webster-Buchanan Multi-Country Payroll Forum and the Hackett Payroll Forum. Her published articles include “Long Tail of HR” and “Bridging the Gap in Your Payroll Solution.”

Cay received a Bachelor of Science in Interrelated Studies with an emphasis in Sociology from the University of the State of New York.

Jane Huston
Jane Huston
SVP, Human Resources

Jane Huston brings more than two decades of experience to her role as SVP of Human Resources for OneSource Virtual. 

As a key member of OSV’s leadership team, she’s committed to continuously strengthening the company’s employee programs and workplace culture to effectively attract, retain and reward top talent while maintaining OSV’s reputation as a great place to work. 

Prior to joining OSV, Jane spent more than a decade with Epsilon Data Management, serving in a variety of roles that included SVP of Human Resources and chief people officer. She has also worked for Grant Thornton LLP and Ernst & Young Consulting. In 2016, the Dallas Business Journal named Jane a “Women in Business Honoree” for her years of excellence in leadership. 

Outside of work, Jane stays very involved with Girls Inc., an organization dedicated to providing underserved girls ages 6-18 with the life-changing skills they need for success in school and in their careers. She is a reluctant jogger, but she thoroughly enjoys old movies and reading. Jane lives with her family in Dallas.

John Bax
John Bax
Chief Financial Officer

John Bax is a finance and operations executive with more than 20 years of experience in a diverse range of technology-enabled and professional services organizations, including the world’s largest company, Wal-Mart. As chief financial officer for OneSource Virtual, he is responsible for overseeing the company’s accounting and finance activities, from capital structure to forecasting, planning and preparing the corporate and financial infrastructure that will ensure continued growth.

A longtime CFO of private equity and venture capital-backed technology businesses, John has scaled three separate startups to more than $1 billion in annual revenues, raised more than $3 billion in capital in the private markets, performed more than 40 M&A transactions, and managed finance and accounting teams from 6 to 300.

Prior to joining OneSource Virtual, John served as CFO for Rubicon Global, NJOY, LivingSocial, Recyclebank and Sentient Flight Group. At LivingSocial, he was also in charge of all international operations, with operations in 24 countries across six continents, and more than $1 billion of annual turnover reporting to John. He also served as VP planning & analysis for Wal-Mart Stores, where he was responsible for strategic planning. Prior to that, he was CFO of their Walmart.com unit. John brings deep professional services as experience to his role as well, having reached the senior manager ranks with Ernst & Young.

John earned his Bachelor of Science and MBA from Oklahoma State University. John and his family live in Atlanta, Georgia. In his downtime, John volunteers as treasurer of Walton Youth Football and Cheer.

Erin Clark
Erin Clark
General Counsel

Erin Clark joined OneSource Virtual in 2019 as assistant general counsel before moving into the role of general counsel in 2020. With more than 30 years of corporate and litigation experience on her resume, she leverages her broad legal background every day in service to OSV.  

Before coming on board, she served as senior corporate counsel for Huwai Device USA, Inc. She also served in multiple senior counsel positions for Hewlett Packard and Electronic Data Systems.  

Born and raised in Dallas, Erin earned her Doctor of Jurisprudence from the Texas Tech School of Law and, together with her husband, has three kids, one grandkid, four cats, and one dog. When she’s not working, she volunteers with Court Appointed Special Advocates (CASA) as an advocate for children removed from their families by CPS. She also enjoys singing, hiking, and biking. 

Sajjad Khan
Sajjad Khan
SVP, Product Management

Sajjad Khan brings over 20 years of extensive experience in product management to his role as OneSource Virtual’s senior vice president of product management. 

Prior to joining OSV, he was head of Product Management at 7-Eleven and led their efforts in digital products, including their 7Rewards loyalty program and Digital Wallet initiatives. Prior to 7-Eleven, he held product management leadership roles at Capital One, Texas Instruments, and Distribion. 

As a thought leader in product management, Sajjad is passionate about finding the touchpoints of innovation, humanity, and high growth business opportunities. His position amplifies OSV’s focus on customers and will bring new best-in-class products to market while leading OSV’s future product strategy. 

Sajjad holds several patents within the digital product domain solving complex customer problems and has won several awards, including the 2020 Loyalty360 Platinum Award for customer loyalty strategy, and he helped 7-Eleven win CSNews 2019 Technology Leader of the Year. 

Sajjad lives in Dallas with his wife and family. He earned his B.S. degree in Computer Science Engineering at The University of Texas – Arlington and has an MBA from Southern Methodist University. 

Connect with Sajjad Khan on LinkedIn. 

Michael Roseman
Michael Roseman
SVP, Service Delivery

As OneSource Virtual’s senior vice president of service delivery, Michael Roseman oversees the BPaaS and Application Management Services teams, helping drive consistency and innovation across OSV’s three service pillars. Michael has proven experience leading teams in nearly every branch of OSV, making him uniquely qualified to act as this single point of accountability for the services OSV offers its customers.

Before assuming his current role in 2018, Michael served OSV as senior vice president of customer operations and senior vice president of finance and accounting outsourcing. He began at OSV as vice president of professional services, where he focused on reliable, efficient services that maximized customers’ Workday investments.

In addition to his many years with OSV, he has also held executive leadership positions at Astadia, Inc. and Marketing Advocate, LLC.

Michael holds a BA in history from Emory University, an MBA from the University of Texas at Austin and a graduate certificate in Mandarin from the Chinese University of Hong Kong.

Mike Poarch
Mike Poarch
SVP, Sales

Mike Poarch is a seasoned professional with 25 years of experience as an executive and entrepreneur. Since joining OneSource Virtual in January 2010, he has used his substantial expertise in sales to serve in multiple roles within the organization, including senior vice president of North American sales and his current position as senior vice president of global sales.

Prior to joining OSV, Mike gained essential experience as the founder and partner of N-Syte Coeus Group (NCG). During the 10 years he led NCG, he and his team built an application services provider (ASP) technology platform and offered BPO and HR consulting services. His executive and entrepreneurial experience there laid the foundation for his current position within OSV’s Executive Leadership Team.

Mike earned a BA in communications from The University of Texas at Dallas. In his spare time, he enjoys hunting, fishing, cooking and sports.

Randy Black
Randy Black
SVP, Research & Development

Randy Black is the senior vice president of research and development for OneSource Virtual and has more than 30 years of experience in software development and leadership across a diverse set of industries and technologies. Randy joined OneSource Virtual in June 2015 as VP of professional services focusing on the integrations practice and now leads the Research and Development team. He is responsible for the delivery of innovative technology solutions that  allows OSV to deliver high quality cloud-based business process services to the market.  

Previously, Randy served as the VP of technology development at Voyager Sopris Learning leading the design, development and delivery of web solutions for the K-12 market. With a consummate entrepreneurial spirit, Randy’s career also includes co-founding two software start-ups and earning two US Patents.

Randy holds a Bachelor of Science in computer science from the University of Kentucky and a Master of Science in computer science from SMU. Outside of the office, Randy likes to spend time with his family and travel.

Sam Spector
Sam Spector
SVP, Professional Services

Leveraging his years of experience as an accomplished senior executive, Sam Spector is committed to helping OneSource Virtual remain a global leader in the Workday ecosystem.

As a long-time executive in the Workday ecosystem, Sam has extensive experience in the field of across all of the Workday functions and offerings and he’s passionately focused on cultivating customer satisfaction.

Prior to joining OSV, Sam was President and CEO of Meteorix and a Workday Global Practice Leader for IBM.

With his combination of talent and experience, he’s helping OSV develop the solutions that will continue to make OSV the go-to partner for Workday implementations.

Sam lives in the Greater Boston area and holds an advanced business degree from Boston College.

Kelvin Gray
Kelvin Gray
SVP, Customer Success

Kelvin Gray has been an essential member of OneSource Virtual since 2009, bringing with him 20 years of extensive experience in information technology and management. He uses this experience and passion for customers to help them receive maximum value from their solutions. Throughout his time with the organization, he has held multiple roles, including director of field operations, vice president of solutions sales and SVP of customer accounts.

Before coming to OneSource Virtual, Kelvin gained valuable experience through his work with Workday, PeopleSoft and Oracle.

Kelvin holds a BA in computer science from Morehouse College and an MS in information technology from Northwestern University. When he’s not splitting time between OSV HQ in Dallas and wherever he’s needed by customers and his team, Kelvin calls Chicago home.