These guys remind me of the story about the scorpion and the frog. You know what they are, and what they are about, and you know they are going to sting you. I have stumbled across many of these in my career. They are eager, anxious, driven and willing to kiss the asses that need kissing and throw the bodies under the bus that need to be thrown. Not that there is anything wrong with being a head coach, but it is the way a Nutcutter goes about it that makes it different.
These are the guys that want to be head coaches, and they want to become one yesterday. A Nutcutter is usually a little man. He has unresolved issues from his childhood and playing career, and a Napolean complex that knows no bounds. When he comes in, he ingratiates himself with the people that can make things happen for him. He follows them around like a lost puppy and will break his nose if that person ever stops short. Like the parasite he is, a Nutcutter will suck his host dry and then move on to the next body.
The Nutcutter knows every coaching job open in the state. He follows them with interest, especially if it is some one he knows that can further advance his carer. His loyalty is to himself, and no others. Like the frog learned, beware the scorpion.