This appears to be lost on most fans, but if you didn't notice, Nebraska split up their offensive and defensive squads into three groups. Instead of calling the groups 1st team, 2nd team, and 3rd team, they were the BLACK group, red group, and white group. The "black" shirts designated the first team (as it should be), so in one of his pressers, instead of calling it good on good, coach Rhule called it black on black.