From the summary:
…In this report we describe how conflicting expectations, misaligned system requirements, and programmatic firewalls on the federal level create formidable barriers to the operation of a well-coordinated system of high-quality early childhood education for children from birth to 5 years old. This lack of coordination means that our federal investments are neither operating as efficiently nor as effectively as possible. As a result we are missing the opportunity to increase the number of young children who enter kindergarten with the skills, knowledge, and dispositions necessary for school and lifelong success.
Currently, there are four federal funding streams–Head Start, the Child Care Development Block Grant, the Elementary and Secondary Education Act, and the Individuals with Disabilities Education Act–investing approximately $13 billion annually in early childhood programs focused on boosting early learning outcomes. Most of the resources from these funding streams, which we describe later in this report, are targeted to at-risk children. But despite laudable intentions, challenges naturally arise when multiple federal agencies are working relatively independently of one another in pursuit of a common goal….