According to Jon Heyman of CBS Sports, the team will not hire a replacement for Jennings. Instead, president of baseball operations Mike Hill will take on his responsibilities with the help of vice president, assistant general manager Mike Berger.
Jennings began the season as general manager, but was given the additional role of manager after the team fired Mike Redmond in May. Jennings was pushed into the role by team ownership, despite having no coaching experience.
The Marlins hired former Los Angeles Dodgers manager Don Mattingly to take over for Jennings, who went 55–69 leading the dugout.
According to Bob Nightengale of USA Today, Jennings was not involved in Mattingly’s hiring process.
Jennings is owed $4.5 million on his current contract from the Marlins.