Uber has lost its second-most-important executive in a shakeup stemming from an internal investigation into sexual harassment charges. The changes at the top reportedly could include the temporary loss of Uber's founder and chief executive, Travis Kalanick. Emil Michael -- who served as the company's senior vice president of business and a key lieutenant to Kalanick -- is out. Former AG Eric Holder reportedly has presented findings of his investigation into corporate culture at the firm, following reports of widespread sexual harassment.