New York, Mar 24 Starbucks' new Indian-origin CEO Laxman Narasimhan has said he will work as a barista once a month in stores to stay close to the company's culture, customers, challenges and opportunities. Narasimhan, 55, officially became the Seattle-based coffee giant's chief executive on Monday, taking the reins from Howard Schultz about two weeks earlier than scheduled. In a letter to the employees on Thursday, the Indian-American business executive said he will always be a "fierce advocate" for the company's partners and its culture.