The Mattingly Effect: A Coach's Lasting Legacy and a Team's Slump The Toronto Blue Jays' struggles this season have been well documented, but one aspect of their decline has garnered less attention: the departure of Don Mattingly.
As bench coach under John Schneider, Mattingly's impact on the team was evident, and his influence still resonates with players like Ernie Clement.
Clement, the Blue Jays' star infielder, recently praised Mattingly's quick success with the Philadelphia Phillies, where he has teamed up with his son, Preston Mattingly, general manager.