Welcome to the final Big Ten mailbag of 2015. We'll pick it back up in January after the big bowls are over. But for now, let's get to your questions one last time this calendar year ...
@BennettESPN @ESPN_BigTen how big of a splash did HARBAUGH make with hiring of d brown?
— harbaughing (@phunkymarco) December 22, 2015
Brian Bennett: Any time you need to hire a defensive coordinator and you're able to pluck the guy who just led the best defense in the country at a fellow Power 5 program, well .