Oregon linebacker Derrick Malone, left, attempts to make a tackle as Utah running back Devontae Booker carries the ball during an NCAA college football game in Salt Lake City. Booker's 1,512 rushing yards in 2014 were the second most in school history by seven yards. Many expect Booker to be a Heisman candidate in 2015. (AP Photo/Rick Bowmer)
Oregon linebacker Derrick Malone, left, attempts to make a tackle as Utah running back Devontae Booker carries the ball during an NCAA college football game in Salt Lake City. Booker's 1,512 rushing yards in 2014 were the second most in school history by seven yards. Many expect Booker to be a Heisman candidate in 2015. (AP Photo/Rick Bowmer) Rick Bowmer AP
Oregon linebacker Derrick Malone, left, attempts to make a tackle as Utah running back Devontae Booker carries the ball during an NCAA college football game in Salt Lake City. Booker's 1,512 rushing yards in 2014 were the second most in school history by seven yards. Many expect Booker to be a Heisman candidate in 2015. (AP Photo/Rick Bowmer) Rick Bowmer AP

College football preview: Pac-12 North

August 31, 2015 07:20 AM