Small groups and teams are the building blocks of modern organizations. Organizations that better utilize groups and teams deigns should manifest greater human capital resource flexibility, performance, and transfer of knowledge and innovation. Hence, it is sensible that the human capital architecture should be focused on meso-level (groups and teams) constructs and processes. Yet, as we discuss in this chapter, research on the mobilization of strategic human capital resources needs to give much more explicit attention to groups and teams than it has to date. We take a simple position: significant advancements will occur in the field of strategic human capital resources by integrating research with meso-level theorizing on groups and teams. By introducing meso-level theory to research on strategic human capital resources, our field will be able to far better articulate the important social reality of contemporary business, and the implications of such reality to the utilization of human capital resources.