Corus Entertainment announced Monday the early retirement of its president and CEO, Doug Murphy, effective immediately. The media company’s board has appointed Corus executives Troy Reeb and John Gossling as co-chief executive officers. “These appointments are effective immediately and reflect the strength of Corus’ leadership bench and a forward focus on managing through a challenging environment,” reads a Corus press release announcing the changes. Murphy had been with Corus for 21 years, first joining the company in 2003 as executive vice president of business development and holding successively more senior positions until 2015 when he was promoted to president and...