A question about Herb Deromedi and U-M

I was listening to The Friday Big Show with Jim and Al on WTKA yesterday. Near the end of the show they were talking about Brady Hoke going up against San Diego State later this year. This led to a brief conversation about coaches going up against their former team.

Jim Stark mentioned that he thought one of the great ironies of coaching was when Central Michigan visited Michigan Stadium and former CMU head coach Herb Deromedi, who according to Stark "was the assistant coach at Michigan the last two years of his career," was on the sideline in his Michigan blue going up against his former team.

Does anybody actually remember Herb Deromedi doing any coaching for Michigan?

Not that it's the be-all and end-all, but Deromedi's Wikipedia page does not have Michigan on his coaching record. It lists that he was an assistant at CMU from '67 to '77 and HC from '78 -'93. It says that he was also the AD for CMU from '94 to '06. Michigan and CMU have only played three times in their history -- 1931, 2003, and 2006. He was still employed by CMU in 2003, so if this actually occurred, it would have had to have happened during the 2006 season, maybe after he retired as CMU's AD?

A quick check of the records on U-M's Bentley Historical Library website shows no record of Deromedi as a coach on either the 2006 or 2007 team. I suppose, however, that it's possible Deromedi served as a volunteer assistant on those teams -- maybe as a favor to Lloyd Carr and Mike DeBord, with whom I believe he was good friends.  If that's the case, then maybe that's why he is not listed anywhere as an official U-M coach.

I don't know myself, so I'm wondering if anyone can confirm the plausibility of Mr. Stark's story, or if he is just, as former WTKA host Doug Karsch likes to say, full of poi.