Investing.com - Uber has appointed Expedia (NASDAQ:EXPE)'s Chief Executive Dara Khosrowshahi as its new CEO.Khosrowshahi has led Expedia for 12 years.He will replace Travis Kalanick, who resigned in June following pressure from shareholders.Khosrowshahi will face a number of hurdles at Uber,including the task of repairing its scandal hit image, improving relations with investors,and shoring up its finances after years of losses