We’re down to just one regular season weekend left before Championship Saturday and College Football Playoff Selection Sunday, but not without still a ton of important football left to be played loaded with national implications. Not least in a pair of traditional rivalry games: Ohio State faces off against Michigan with a spot in the Big Ten Championship Game and a likely playoff berth on the line as the probable No. 2 seed in the semifinal. And out west a pair of first-year coaches square off at the Coliseum as USC, already with a spot in the Pac-12 title game,…