One important reason people fail at interviews is because of several misconceptions, or myths, about what really happens during the course of an interview. All of us know that the purpose of interviews is for an interviewer to hire someone who will perform well in a particular job, but beyond that few people fully grasp how interviews really work and what makes one candidate stand out more than another. This lack of understanding represents a major obstacle to maximising performance when sitting before an interviewer and trying to give your best answers. Interviews are no different to other endeavors in life: the better you understand how they work (or don't work), the higher the probability of tackling them successfully. An understanding of the underlying dynamics inherent in most interviews is an important start to improving your interview performance.
Sometimes this is true—especially in a situation where everyone knows everyone else, such as when a company is recruiting internally. However, this is often not the case. In order for the best person for the job to win it, a number of very important things need to be in place (and even then, there's no guarantee). These include: