I always said to my wife that when I was appointed in my early thirties that its weird knowing I'm the smartest guy in the room, so while some were genuine most were in my opinion dumber than a bag of hammers.
To me there is only two types. Control freaks, and then followers.
Shepherds never last, they can't take the power struggle. They are also likely to be too compassionate with the flock and thus will step down when the figure out how it really is.
But there is also always one old grumpy ahole that has an axe to grind with everyone. Control freak ones also appear to be the biggest hypocrites as well. (Aka - sister needs to get her hours up, but I can't because....)
Most are the biggest pussies as well. (Can't think of any other way to say it, sorry :))