COLUMBUS, Ohio — Columbus Blue Jackets coach Rick Bowness said he was blindsided by the news that two of his star players, defenseman Zach Werenski and winger Kirill Marchenko, have told the club they don’t want to remain with the Jackets beyond their current contracts.Bowness, in Columbus to watch the start of Blue Jackets development camp, met with the media to discuss the hiring of assistant coach Trent Vogelhuber. But, like everything else with the Jackets right now, the conversation quickly turned to Werenski and Marchenko.Blue Jackets general manager Don Waddell is listening to trade offers for Werenski, whose contract runs through the 2027-28 season. Marchenko is a restricted free agent after the 2026-27 season, so his situation is less urgent.But one or both could be traded before the Blue Jackets drop the puck on next season, and that’s not something Bowness could have imagined when they ended the regular season in mid-April.“I’m as shocked as anyone that these came up,” Bowness said. “I mean, at the end of the year meetings, we looked each other in the eye and had great meetings and gave each other a hug leaving, and all that.“So everything was good. So when all of this broke, I was shocked and caught off guard like everyone else.”Waddell got down to business right after the season ended, extending Bowness’ contract through at least next season and signing veteran center Charlie Coyle to a six-year, $36 million contract extension.