While Costco co-founder Jim Sinegal is stepping down as CEO, he will remain as chairman. Ensuring a smooth transition for the new CEO and continuing to provide his guidance means that Sinegal's presence will give Costco an advantage over other retailers. Earlier this year on our nationally syndicated Motley Fool Money radio show, Sinegal shared his thoughts on his negotiating sessions with Starbucks CEO Howard Schultz, as well as how Wal-Mart founder Sam Walton felt about Sinegal's business mentor, Sol Price. 

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