One Source Leadership Team

Eric Gressel
Executive Vice President of Sales

As Executive Vice President of Sales, Eric oversees the development and execution of the company’s sales strategy including customer acquisition, expansion and retention, as well as building a network of strategic partners, alliances and channel sales programs. In this role, he works closely with customers, partners, and internal product management teams to identify opportunities to enhance the value that One Source offers its customers.
Eric has a passion for building and architecting high performing sales organizations. Prior to One Source Communications, Eric served in leadership roles at high growth SaaS companies, ChannelAdvisor (2013 IPO) and Sageworks, with a focus in scaling global sales organizations.
Eric holds degrees in Business and Economics from North Carolina State University. You will find he and his wife traveling with their two daughters or on the golf course.

Kirk Waddell
Executive Vice President of Technology

Kirk Waddell has been an integral part of the One Source team since 2001. Throughout his tenure, Kirk has served One Source clients in nearly every capacity possible. His technical knowledge and expertise, makes him an effective leader; providing guidance for One Source employees and clients. Kirk received his undergraduate degree from East Carolina University. He and his wife have two daughters.

Steve Cobb
Chief Information Security Officer

Steve Cobb joined the One Source team in 2015 and is responsible for providing IT consulting and management for One Source clients. Steve has more than 20 years of experience in the IT industry, from starting his own business in the early 1990’s to working with enterprise companies, most recently Microsoft. Steve attended UNC-CH, but left early to start his own IT company, and ultimately received his degree in Business from East Carolina University. Steve and his wife have two daughters and a son.

Jason Wallace
Vice President of Operations

Jason Wallace joined the One Source team in 2004. He has led several teams throughout his tenure and currently leads Operations for the company. He is a passionate leader whose focus is developing others to drive organizational success. Jason holds a BS in Business from Wake Forest University with a focus in MIS. He is married and has two children.

Jeff Clark
Vice President of Finance and Administration

Jeff Clark has been part of the One Source team for fourteen years. Since 2002, Jeff’s strength of adaptability has afforded him the opportunity to serve in a variety of roles all with a common purpose; to ensure One Source employees are effectively served with the core value of Servant Leadership at the heart of every decision. Jeff’s ability to analyze decisions from the perspective of One Source’s collective group makes him an essential part of the leadership team. Jeff received his undergraduate degree from UNC-Pembroke. He and his wife have three children and enjoy their chaotic life together.

Yi Yi Tang
Vice President of Marketing

For over 20 years, One Source grew solely by word of mouth through client and partner referrals. Yi Yi joined One Source in 2017 to lead marketing. Her mission is to help educate mid-market leaders on Communications Lifecycle Management so that they will realize significant telecom expense savings while improving employee productivity. Prior to One Source, Yi Yi worked as a Director of Product Management and Customer Experience for Liberty Mutual. She also worked as a Management Consultant for PricewaterhouseCoopers strategizing for Fortune 100 executives in Telecom, Retail, Financial Services, and Healthcare. Yi Yi graduated cum laude with a Bachelor of Arts in Biology from Boston University and an MBA from the University of Chicago Booth School of Business.

Tim Meng

Tim is a passionate technologist and experienced strategist; he is the CEO of One Source Communications and has been an advisor for several Fortune 50 companies. Prior to joining One Source, Tim was a practice area expert on Telecom, Media, and Technology at The Boston Consulting Group. He holds a BASc in Electrical Engineering and an MBA from the University of Chicago.