The Under Secretaries report directly to the Secretary of State. Each Under Secretary is responsible for a portfolio of issues, most of which are assigned to a bureau to oversee. Assistant Secretaries [link] head up the bureaus and report to the respective Under Secretary.
Arms Control and International Security: John Rood
Democracy and Global Affairs: Paula Dobriansky
Economic, Business, and Agricultural Affairs: Reuben Jeffery III
Management: Patrick F. Kennedy
Political Affairs: William J. Burns
Public Diplomacy and Public Affairs: James K. Glassman