A move will have to happen at some point, it doesn't necessarily have to happen as soon as the trade deadline. Of the names mentioned, I don't see Sweeney going after Kane, especially if it means giving up a quality prospect for a rental. On Hoffman, Ottawa reportedly declined a prospect(s) + pick(s) driven offer. So as of right now, that rules out Boston. Then there's Pacioretty. Would they even want to make a trade with the Bruins, let alone giving their biggest rival a quality top 6 winger with the risk of losing the trade, and Pacioretty scoring goals against them. Would the Bruins expedite Montreal's rebuilding process? Never say never, but I highly doubt a trade sending Pacioretty to Boston and prospects to Montreal will happen.
What is most interesting about that video is that when the hosts asked Friedman which teams might be looking to make a big acquisition, like one of the three players mentioned in the video, Boston was not brought up. Friedman brought up St. Louis, their great drafting, and their ability to make a move to improve the current team, Nashville, Pittsburgh, Calgary, and Tampa Bay. The Bruins sound much like the Blues but weren't mentioned. Either the Bruins are content and may make a move or two like trading Spooner and giving his spot to Cehlarik or Bjork, or Sweeney keeps things so tightly knit from the media that we'll find out when a trade gets made when it does.