Adults who provide care and education to young children have a great responsibility, as children's early environment and relationships have profound and lifelong effects. The Early Head Start conceptual framework recognizes that the characteristics of teachers and home visitors who deliver core Early Head Start services to children and families are an important factor in achieving quality. The framework illustrates several pathways through which Early Head Start staff might influence service quality and promote enhanced outcomes for children and families. In this brief, the authors use data collected in spring 2018 from a nationally representative sample to describe Early Head Start teachers' and home visitors' characteristics, the program activities (or processes) they are part of, and how well their programs operate (or function). The authors also examine how staff-specific program processes and program functioning are associated with job satisfaction for teachers and home visitors.