The Globe and Mail reports in its Saturday edition that Jamie Irving is stepping down as executive chair of Postmedia Network Canada after less than six months in the role, as the country's largest newspaper chain deals with a heavy debt load and a tumultuous media climate. The Globe's Joe Castaldo writes that Postmedia issued a terse news release Thursday stating that Mr. Irving was resigning from the board to pursue other opportunities, but provided no further details. Lead director Peter Sharpe, who was previously chief executive officer of Cadillac Fairview Corp., will serve as interim chair. Mr. Irving joined Postmedia's board in April, 2022, after the company paid more than $16-million to purchase Brunswick News Inc., the media arm of the Irving family holdings. One of the wealthiest clans in Canada, the Irvings own industrial businesses that span forestry, oil and shipbuilding. The sale of Brunswick News, which includes the Telegraph-Journal newspaper in New Brunswick, marked the family's exit from the media business. Mr. Irving spent two decades at Brunswick News and took over as publisher of the Telegraph-Journal when he was 27. He became Postmedia's chair in January, replacing Paul Godfrey.