As a new head coach of a very storied program, Jim Harbaugh probably expected to be asked some tough questions.

But, at Michigan’s Media Day, Youth Day press conference, Harbaugh was presented with a question he probably wasn't expecting.

“How much milk do I have to drink to be big enough to be quarterback?,” asked the young Wolverines fan.

Perhaps the boy is alluding to an interview Harbaugh did with Andrea Kremer for HBO’s Real Sports with Bryant Gumbel, where the coach -and former NFL quarterback- told Kremer his secret to success.

“I heard that if you drink milk it builds strong bones,” Harbaugh said, “so I convinced myself to drink as much milk as I possibly could.”

Harbaugh told Kremer that he worked as a “milk distributor” for his third-grade class, where he would get one free milk a day plus whatever milk was set out for kids who were absent that day.

“I drank a lot of milk,” he said, “a lot of milk. But, whole milk not that two percent or skim.”

As it turns out, all you need to succeed in football is determination and a little milk.

But make sure its whole.

MORE: Full Jim Harbaugh interview at Media/Youth Day.