The Globe and Mail reports in its Saturday edition that some of the biggest household names in corporate Canada are calling it quits. The Globe's Jason Kirby writes that top brass at Cenovus Energy, Restaurant Brands International and Loblaw are calling it a day. All told, this has been the busiest start to a year for turnovers at S&P/TSX Composite Index companies in at least a decade, an analysis of CEO transition announcements shows. Between January and April, 10 index-listed companies with a combined market capitalization of nearly $200-billion said their CEOs would be leaving, about double the number during the same period in the previous two years, and edging out the previous high of eight in 2020. While CEO transitions can reinvigorate a company's employees and provide an opportunity for a strategic rethink, they also present great risk. After all, studies suggest as many as 40 per cent of new CEOs fail in the first 18 months in office, which can pummel a company's shares. So, as the most significant senior management handover in years unfolds, boardroom succession plans for CEOs are being put to the test. The Globe says the pace of executive change is eerily reminiscent of the Great Recession.