After his tenure at Kansas came to an end, Mark Mangino moved to Naples, Fla., and has kept a low profile.
A Minneapolis TV station reported that Mangino had been hired as a consultant, but Minnesota athletic director Joel Maturi denied the report on Wednesday.
According to other reports by Minnesota media, Mangino was on the sidelines for Minnesota's loss to USC over the weekend.
Maturi said Mangino came only as a friend of Brewster.
Brewster, in his fourth season with the Golden Gophers, is 15-26, but has been to the Insight Bowl in each of the past two seasons after going 1-11 in his first year on the job.