Jim Harbaugh uniting several different eras of Michigan football through his staff

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Michigan quarterback Denard Robinson — Former Michigan football quarterback Robinson holds the NCAA record for rushing yards by a quarterback, accumulating 4,495 yards. He'll be back at Michigan as a coach.(Photo by Gregory Shamus/Getty Images)

Every now and then, Twitter can be a great place. Avid Michigan fan Donovan Thomas made a great point Wednesday afternoon, after TheWolverine.com's Ant Wright reported that the Wolverines are hiring former U-M quarterback Denard Robinson as their assistant director of player personnel, displaying how different eras of Michigan football are now represented through his staff. That includes both on-field coaches and support staff members. That inspired this column, in which we delve into Harbaugh's staff that has a strong Maize and Blue flavor.