Leadership Team

Nancy Halverson

General Manager

With over 30 years of experience in staffing & recruiting and executive search, Nancy joined the organization in 2008 as VP, Learning & Talent Development to drive organizational training strategy, including the design, development and delivery all training tools and management programs. Her role expanded to VP of global operations and franchise recruitment in 2013 with a strong focus on franchise relations and owner engagement programs to enhance and energize the company’s culture. Her commitment to the franchise community and her success in delivering service excellence led to her appointment as general manager of the company in 2017. She continues to direct her efforts to providing enlightened leadership in today’s challenging environment and to developing programs for tenured franchisees. Prior to joining MRINetwork, Nancy honed her skills over 19 years with Spherion Corporation (now Randstad, NA), where she progressed rapidly from running a search practice and strategic sales to the ranks of upper management as VP of Strategic Accounts. Nancy holds a B.S. in Interdisciplinary Studies from Michigan State University.


Sherry Engel

Vice President, Learning & Talent Development

As Vice President of Learning and Talent Development, Sherry is responsible for setting the strategic direction of learning by partnering with franchise owners to establish learning solutions that help them achieve their business goals and objectives. Sherry is a metrics-driven business professional with over 20 years’ experience tying learning strategy to human performance. Her unique background in learning and finance help to ensure a results focus for all learning initiatives. Sherry has extensive experience in leading learning initiatives using adult learning theory including learning solutions that leverage innovative technologies such as micro learning, social learning, gamification, and mobile learning. Sherry has served in strategic learning leadership roles for Santander Bank and Penn Medicine where she’s transformed the learning experiences at both organizations. She is a published author and has spoken at national conference on topics related to measurement of learning and innovative learning solutions. Sherry holds an undergraduate degree in Finance, with a Masters in Instructional Technology.


Marquis Parker

Vice President, Business Services

Marquis Parker serves as Vice President of Business Services for MRINetwork, where he is charged with leading the delivery of business-related services and support to affiliated executive search offices and the execution of initiatives focused on operational performance improvement and strategic growth for MRINetwork Corporate.

Before joining MRINetwork, Marquis spent six and a half years with Aon plc, a $12B provider of risk management and human capital advisory services, in a number of strategy and business operations leadership roles, most recently serving as a Divisional Senior Vice President of Strategy and Corporate Development. Prior to Aon, Marquis worked for McKinsey & Company, the global management consultancy, where he advised both private and public sector clients in several industries, including financial services, public infrastructure, and education. His client engagements covered a range of topics, including post-merger management, organization design, performance transformation, and growth strategy.

Marquis holds an A.B. in Computer Science from Princeton University, M.B.A. from the Stanford Graduate School of Business, M.A. in Education from the Stanford University School of Education, and M.S. in Management of Information Technology from the University of Virginia.


Vince Webb

Vice President, Marketing

Vince joined MRINetwork in 1994, in a newly created role for the organization, Vice President, Marketing. During his almost 10-year tenure in that role, he worked with the management team and the MRINetwork franchise community as the organization grew to span four continents, from its roots as a contingent recruiter of sales and management talent. Vince moved to parent company, CDI Corp., in 2003 directing the firm’s marketing, communications and investor relations functions. Recently Vince rejoined MRINetwork as Interim Vice President, Marketing.

Prior to joining MRINetwork and CDI, Vince spent most of his career in national marketing positions within Marriott.


Colin Dittus

Sr. Director, Contract Staffing, Ops & Development

With nearly 20 years of experience in recruiting and contract staffing, Colin leads operations and development for MRI Contract Staffing. Colin first joined MRINetwork in 2004 as a business consultant for the organization’s franchise operations, advising owners and training desk-level producers. He was then hired by a leading pharmaceutical/biotechnology recruiting firm to establish and grow their contract staffing division, which he grew to a $9M+ business in high-margin annual revenue during his 11 years with the firm. He was responsible for business development, market assessment, client identification, sales, delivery and account management, always focused on growing market share. Now back at MRINetwork, Colin is dedicated to helping both small and large offices succeed in growing their contract staffing business.

He holds a BA in Psychology from Millersville University.