Sartain, Libby

Libby Sartain, senior vice president of human resources and chief people Yahoo, is responsible for leading Yahoo! Inc.'s global human resources efforts and for managing and developing the human resources team, focusing on attracting, retaining, and developing Yahoo!'s employees.

Mark Schumann, ABC, is the former global communication practice leader for the consulting firm Towers Perrin. For more than twenty-five years, Schumann has counseled leaders of major businesses around the world on how to engage employees during challenging situations of defining change.