MONTREAL — It was a seismic shift happening right under Marc Bergevin’s feet, and under his nose too. He knew the end of his tenure with the Montreal Canadiens was nearing. He understood that, in failing to secure a contract extension prior to the start of the season, his days as general manager were likely numbered, and he had come to terms with that reality as he watched the team that got to last summer’s Stanley Cup Final flounder towards the worst start in its 111-year history. But Bergevin didn’t expect the cracks to form as quickly as they did on Saturday, and on Sunday he — along with assistant general manager Trevor Timmins and executive VP of public affairs and communications Paul Wilson — was pushed through them. In a release appearing on the Canadiens’ website at 3:09 p.m. ET., the announcement came that all three had been relieved of their functions effective immediately. Timmins had been with the team for nearly two decades, overseeing the draft for all of that time...