This week Michigan's board of regents authorized a law firm to expand its investigation into the athletic department's handling of the Sherrone Moore situation , a person familiar with the decision told CBS Sports on Friday.

The law firm Jenner & Block has been tasked with the review, which the source described as an "open-ended" inquiry into the athletic department. CBS Sports granted the source anonymity because of the sensitivity of the investigation.

Moore, 39, was fired with cause during a one-on-one meeting with athletics director Warde Manuel on Wednesday afternoon after evidence of an inappropriate relationship with a staff member. Information on that relationship was turned over to the department that morning, sources told CBS Sports.

Hours later, Moore was sitting i

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