What is the person who Claude Mongeau succeeded the CEO of?
Claude Mongeau: Claude Mongeau is a Canadian railroad executive who served as the President and Chief Executive Officer of Canadian National Railway (CNR) from January 1, 2010 to July 1, 2016. Claude Mongeau:  He succeeded Hunter Harrison. E. Hunter Harrison: Ewing Hunter Harrison (born November 7, 1944) is a railway executive who served as the CEO of Illinois Central Railroad (IC), Canadian National Railway (CN) and Canadian Pacific Railway (CPR), and now serves as CEO of CSX.
i don't know