This chapter clarifies why efforts to address problems related to trauma in schools need to go well beyond just enhancing availability and access to individual, clinically-oriented mental health services. From this perspective, we emphasize that trauma and all other student learning, behavior, and emotional problems can and should be approached within the context of a comprehensive system of intervention within schools and school districts. Specifically highlighted are the nature and scope of a unifying and comprehensive systemic approach and the mechanisms needed to develop and sustain it.