Title: Executive vice president, Wal-Mart Stores; chief operating officer, Wal-Mart U.S.
Born: August 20, 1970, Merced, California
Education: BS in marketing, Santa Clara University
Early Marker: Wal-Mart lifer, joining as a store management trainee in 1992.
Big Idea: Former HR executive made the transition to operations in 2013 and is focusing on driving revenue growth in Wal-Mart's sluggish U.S. business.