The person spoke on condition of anonymity Friday night because the club hadn't made an announcement. The Padres said only that CEO Jeff Moorad will address the media on Saturday afternoon.
Towers, in his 14th season, told The Associated Press in an e-mail that he can't comment on his situation. He is under contract through next season. The Padres are 74-85.
Moorad leads a group that is buying the team from John Moores. He has spoken about making changes in the baseball operations department.
Under Towers, the Padres won four NL West titles and reached the 1998 World Series.