By Rieva Lesonsky

In the 2008 Summer Olympics, U.S. swimmer Michael Phelps became a star and a media sensation when he earned an unprecedented eight gold medals. This year, I had some time to watch the Olympics on the first full day of events, and became fascinated by the rivalry between Phelps and his teammate, swimmer Ryan Lochte. Watching NBC interviews with both swimmers, I couldn’t help but draw a few business lessons from their different styles.