A person's ability to perform is demonstrated by their behavior. What they know about a process or discipline is less important than how well they are able to apply their knowledge and skills in a specific set of circumstances. To predict an individual's potential for success, we must examine their past behaviors.
Many managers do, and do so unwittingly.
Because they've failed to prepare adequately for the interview and have left out an important first step. Start developing your interview questions by preparing Time Saver Questions. In other words, Time Saver Questions determine at the outset whether or not a candidate meets the very basic qualifications for the job. If the answer is no, you simply say that relocation is a requirement for the job and immediately turn your questioning to their knowledge of anyone else they may know and refer. Review your job specifications to determine your position's critical fits, write out your Time Saver Questions, and always have them in front of you when you are pre-screening candidates.