The NHLPA expects a full NHL investigation of coach Mike Babcock before the Edmonton Oilers can hire him, sources told ESPN on Tuesday. The investigation would cover Babcock's time with the Columbus Blue Jackets in 2023, when he was hired but never coached a game for the team. Hired in July 2023, Babcock resigned that September after an NHLPA investigation into claims that he violated players' privacy when he asked to see photos on their cellphones.