The N.F.L. said on Sunday that it would take over an investigation of Carolina Panthers owner Jerry Richardson, who has been accused of what the team is calling “workplace misconduct.”
The announcement came less than two days after the club said it had begun its own investigation of Richardson’s behavior. That inquiry, though, was to be conducted by a North Carolina-based law firm and led by Erskine Bowles, the former White House chief of staff, who is also a minority shareholder in the Panthers.
The team did not provide specifics about the allegations against Richardson.