Bill Belichick made his "College GameDay" debut as the head man of the North Carolina football program on Saturday with an on-the-field interview and aced it.

The appearance included giving former Alabama coach and "College GameDay" host Nick Saban credit for the "awful lot" of information the former NFL coach learned from their time together with the Cleveland Browns. That apparently isn't true, according to Saban, who quickly unleashed an expletive at Belichick's response.

"I never thought in all the time we've been friends, I ever say you are full of (expletive)," Saban said jokingly back to Belichick on "College GameDay" on Saturday. "I learned a lot more from you than you learned from me."

But what did Belichick learn from Saban over the years? Here's what the first-year

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