I coach high school football and have noticed the change in emotions amongst the young men. They don't get fired up about much. Case and point...we were playing our arch rival a couple of weeks ago and the kids played like they could care less who they were playing, let alone a rivalry and major conference game. As a coach I continually try to get our boys fired up, but they look at you in the daze (see Zaimejs' post). We got beat pretty good and after the game they were all playing friends with the opposition....I was PISSED!
It truly is a societal thing. I believe the kids do not really care to get fired up. Coaches have to be so damn careful on what they say and do in practice that it does not help the situation. You yell at a kid and you can lose your job because you hurt the kids feelings. I do miss the good ol' days of being able to push your athletes without fear of what parent might be watching from a distance or recording you. I know some tools are to blame because they went too far, but it is just different.
If I would play for Bo I would be fired up all of the time. He is a high emotion guy, but now he has to tame that because of the crap that some coward did last week.