Ted Turner wannabe
I'm not sure the people who made the movie noticed that Mr. Ted Turner who owned the Braves was not allowed to manage the team after his one game.
In 1977, Bristol served as Atlanta Braves manager on two different occasions. Braves owner Ted Turner decided after a long losing streak that he would take over the managerial reigns of the team. However, this only lasted for one game (a 2-1 loss to the Pittsburgh Pirates) as baseball commissioner Bowie Kuhn forbade Turner from managing further due to major league rules prohibiting players or managers from owning a share of a team. Afterward, Turner rehired Bristol for the remainder of the season.
I know wikipedia is not a reliable source, but Turner did manage for one game and was told he couldn't do so again.