To fix Starbucks, incoming CEO Brian Niccol will have to tackle its mobile app problem CNBCStarbucks’ new CEO drinks up to 4 cups of coffee per day FortuneThe New CEO of Starbucks Promised A Rare Leadership Style That Will Make Its Employees and Customers Very Happy Inc.Graphs: How Much People Have Cut Back on Visits to Starbucks Business InsiderWhy new Starbucks CEO Brian Niccol is worth the $85 million and remote California office Yahoo Finance