If it became necessary to locate a large, high-technology defense facility in X location, where would the technical professional work force be obtained? Attempts to answer this question, posed by the Assistant Director of Defense Research and Engineering (Engineering Management) to a Stanford Research Institute team, opened a Pandora's box. Data collected in pursuit of the answer enabled the team to develop several inferences bearing upon the movement of this technical, intellectual resource between geographical areas and between employers. After describing briefly the source and processing of the data, this article describes the team's findings concerning intergeographical and interemployer movement of technical professionals, in that order.