Now that the Big Ten media days are over, training camps opening for the 2015 season are just days away. There were three coaching changes in the conference after last season, all from Big Ten blue bloods. Michigan, Nebraska, and Wisconsin made changes for different reasons. Michigan traded incompetence for what they hope is a return to prominence with favorite son Jim Harbaugh. Nebraska traded Bo "consistently good but not great" Pelini for steady Mike Riley, hoping he gets them to an elite level. And Wisconsin had to replace Gary Andersen, who left abruptly to replace Riley at Oregon State.