Bo, in my opinion, has a very old school coaching mentality.
If the man had been coaching football 40 years ago, before the boom in the media and sports industry, he would have been perfectly within his element. Today, he is responsible for supplying countless local, regional, and national news outlets with up to date information about a football team. He is required to take part in post game press conferences, teleconferences, weekly conferences, and post practice interviews. He also is responsible for going onto talk shows and obliging radio shows as a special guest.
He just isn't the type of guy who is comfortable in front of the camera. He's jittery, he's short, and he's vague. These are all tell tale signs of a guy who just isn't comfortable with what he's doing, but he does it because he has to.
So, yes, Bo is a very happy person. He just isn't exactly what one would call a charismatic man.