Former Chipotle CEO Brian Niccol Starts at Starbucks This Week. How Quickly Can He Turn It Around?

Investors are expecting big things from the star CEO.Starbucks (SBUX -0.45%) shocked investors last month with the announcement that it had hired Brian Niccol away from the top spot at Chipotle Mexican Grill to take over as CEO. Starbucks has been dealing with slowing growth and declining comparable sales, and its previous new CEO, who had been on the job for less than a year, was still asking for time. The board didn't want to give him more time as the stock price sagged and pressure mounted, and it aimed ...