The IT Marksman at Wal-Mart

As the retailing behemoth's CIO, Linda Dillman sets -- and hits -- the tech targets that change how the entire industry operates

To Linda Dillman, executive vice-president and chief information officer at Wal-Mart, info tech is a puzzle to solve -- just like Scrabble, the crossword, or Rubik's cube. "I've spent hours, hours, and hours working on this stuff," Dillman says. "With technology, you're constantly trying to arrange things differently to solve a problem."

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