Now, it's official. Or at least it will be on Friday. The Rangers will conduct a news conference to formally introduce Alain Vigneault as the new coach at 11 a.m. Friday at Radio City Music Hall. Vigneault, the former Canucks and Canadiens coach, agreed in principle to a five-year, $10 million deal on Saturday to succeed the combative John Tortorella. MSG Network will broadcast the news conference live. Vigneault, 52, has compiled a 422-288-35-61 record with the Canucks (2006-13) and Canadiens (1997-2000). Still to be determined – and perhaps it will become clearer on Friday – is who will comprise Vigneault's coaching staff and whether Hall of Famer Mark Messier, a special assistant to GM Glen Sather who was the only other candidate interviewed for the job, will remain with the organization. Separate reports have indicated that former Rangers defenseman Ulf Samuelsson could be a candidate to be an assistant as well as former Canucks assistant Newell Brown. The Rangers have not yet announced assistant coach Mike Sullivan's departure from the organization, but that is considered imminent.