Pittsburgh's Rushel Shell (4) breaks away from Buffalo's Khalil Mack (46) to score a touchdown during the first half of an NCAA college football game in Amherst, N.Y., Saturday, Oct. 20, 2012. (AP ... more 

Pittsburgh's Rushel Shell (4) breaks away from Buffalo's Khalil Mack (46) to score a touchdown during the first half of an NCAA college football game in Amherst, N.Y., Saturday, Oct. 20, 2012. (AP Photo/Bill Wippert) less