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Last year, Michigan was hit with NCAA sanctions for violations of practice-time limits under then-coach Rich Rodriguez, who took over in Ann Arbor after Carr retired following the 2007 season.

It was the first time the Wolverines’ football program had been cited by the NCAA for breaking rules.

Asked whether Rodriguez had tarnished the integrity of Michigan football, Carr said, “I can’t answer that.”

He added, “I think it was a disappointment for everybody.”

In addition to the NCAA problems for Michigan and Ohio State, the football programs at North Carolina, Auburn, Oregon and Tennessee are also under scrutiny for possible violations.

“If you look at where we are today, there’s obviously problems,” Carr said. “There’s a lot of issues and we need to address them for the good of the game. For the integrity of intercollegiate athletics.

“We’re under fire. We shouldn’t be where we are.”