Mattingly has been the Blue Jays bench coach for the past few years and it does not seem like anyone in Toronto is a fan of his, from the players to the fans which is why it does not make sense that he is still around.
The Blue Jays were without Mattingly for a portion of the season this year as he had surgery and took time off to recover which unsurprisingly was when the Blue Jays were playing their best baseball of the season. As soon as Mattingly returned from his surgery, the team began to play bad once again.