Jimmy Williams was a coach at Oklahoma State in 2007 when he quit with one year left on his contract, thinking he would join Smith's staff in Minneapolis, the Minneapolis newspaper reported.
It added that in a lawsuit Williams claimed his hiring to a job that would have paid $200,000 per year was rejected by Minnesota Athletic Director Joe Maturi in April 2007.
His suit accuses Smith of "false representations of authority" and claims that Smith told him "he was the right person for the job. I am really offering you the job, and I can get you the money that you wanted."
Williams was a Minnesota assistant when the Big Ten Conference school was accused of committing NCAA violations in the 1970s.