Steve, Lominger is a great resource and you are apparently experiencing its value. Providing a candidate with "real world" situation that they have to analyze and react to provides insight into their though processes and ability to come up with a course of action. You are to be commended for using this approach. Preparing in advance for the potential candidate's interview is also an important element of the hiring process. Too often interviewers rely on reviewing a candidate's resume just before the interview and fail to develop an interview strategy and outline of meaningful questions. Dr. Robert Roehrich