What was an open secret has become a huge disrespect to the coach. The coach knew that he was already being replaced, but until it was announced, he had to stay on the job, face the media and act professionally. This he did very well, but not without emotion.
While his time as an NHL head coach is probably over, it would not be surprising to see him return to the league as an assistant. His experience could be very beneficial to any NHL team, but especially to a young coach.