COACHING AND HUMAN NEEDS

Why is it that some people seem to be almost incapable of acknowledging sources or recognizing the value of a well-established model? I began asking that question some years ago as a response to seeing so many NLP people (trainers, writers, practitioners) who do not so much as put a bibliography at the end of an article or book. From the way these people write, you would think that they came up with all of the ideas that they present— that all knowledge began with them!