McCreary was a grad student. Unless he was some kind of genius he was well over 20 when he observed the rape. Given his response to the event I very much doubt he was a genius.
McQ was a football player...not a Rhodes scholar. All of his training at PSU was to play football. All of his experience trying to make it in the NFL was about football. He was at PSU in 2002 as a graduate asssistant to coach football. I contend that McQ was an expert in football...but nothing more