John R. Mattox II is a senior measurement consultant with CEB, a best practice insight and technology company. Prior to this, John was director of research at KnowledgeAdvisors and led training evaluation teams at several Fortune 500 companies.

Mark Van Buren is an HR Practice Leader at CEB. He has worked with hundreds of organizations to respond to a clear shift in employee preferences for learning and an increase in employee-driven, technology-enabled development.

Jean Martin is CEB's talent solutions architect. She leads insight and product development in talent management and regularly presents to executive teams at top Fortune 500 companies. Her commentary has appeared in publications such as Harvard Business Review, The Economist, and Forbes.