Message : Required fields WINNIPEG, Manitoba (Reuters) - Investors expect the new chief executive of Canada's Nutrien Ltd to swing deals as part of a more aggressive growth strategy, after an abrupt shake-up at Canada's biggest agriculture company. Nutrien, the world's biggest fertilizer producer by capacity, surprised shareholders on Sunday by promoting its chairman, Mayo Schmidt, to CEO, replacing Chuck Magro, who had led the company since it formed from Agrium's 2018 merger with Potash Corp. Schmidt, raised on a Kansas farm, is best known for leading the Saskatchewan Wheat Pool grain cooperative's acquisition of competitor Agricore United in 2007, creating Viterra Inc, one of Canada's biggest grain handlers. He subsequently bought Australia's ABB Grain before leading the sale of Viterra to commodity trader Glencore PLC in 2012.