When Bensel-Meyers was a professor at Tennessee in the late 1990's, she charged the university's football team with serious academic improprieties.

Afterward, a series of disclosures emerged concerning Clarett: academic improprieties, falsifying the value of items stolen from his car, being given access to a car dealer's automobile, misleading N.C.A.A. investigators.

In 1989, his program became embroiled in controversy when allegations of academic improprieties at the university were made in a book, "Personal Fouls."

He was also investigated and cleared of academic improprieties after his freshman year, when he led Ohio State to the national championship.

In 2012, he was appointed to lead an investigation into academic improprieties at the University of North Carolina at Chapel Hill.

He led the 2007 investigation into alleged academic improprieties surrounding the Hoover High School football team, concluding that athletes were given special treatment.

"We were all in this together," he said in a telephone interview after the university announced it would begin an investigation into suggestions of academic and ethical impropriety.

But he has been under investigation by both a university committee and the National Collegiate Athletic Association for possible academic improprieties in a class and the disputed theft report.

A flurry of allegations involving academic and booster-related improprieties during the Maurice Clarett era in Columbus did not result in sanctions by the N.C.A.A., although the university suspended Clarett.

Valvano was ordered to resign his administrative post after an inquiry into academic improprieties in the school's basketball program.