Gisel Ruiz

Benjamin Wachenje

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.

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