Big Ten Power Rankings Week 13: Nebraska Slips, Northwestern RisesBy Caleb Calhoun | Nov 26, 2014PrevPrev12 of 15NextNextNov 22, 2014; Lincoln, NE, USA; Minnesota Golden Gophers quarterback Mitch Leidner (7) hands off to running back David Cobb (27) against the Nebraska Cornhuskers in the first half at Memorial Stadium. Mandatory Credit: Bruce Thorson-USA TODAY SportsNextHome/Big Ten