NHL training camps are in full swing, and Pittsburgh Penguins superstar, Sidney Crosby is not among the participants. He has yet to fully recover from the concussion suffered at last year's Winter Classic. We have seen what concussions have done to athletes in various sports, and it is possible that Crosby will never be the same again. Hypothetically, if Crosby is finished, is he a Hall of Famer? He has already won everything worth winning, capturing the Hart Trophy, the Stanley Cup and the Olympic Gold Medal. Let's say he comes bacl and is just an average player for the…