Group processing projects present a series of challenges which demand a wide range of technical and administrative skills from archivists. These are met with varying degrees of success. Often, this is the first opportunity for an archivist to test his knowledge and skills in a supervisory position. Professionals who lack the necessary complement of skills, or who are unable to blend these skills to fit the needs of a project, operate at a distinct disadvantage for themselves and their employers. The following discussion of group processing components outlines some of the advantages and disadvantages associated with each phase and describes the many skills required of archivists who supervise group projects.