FrontMatter -- Preface -- Acknowledgment of Reviewers -- Contents -- Summary -- 1 Introduction: The Operational Environment -- 2 Challenges of the Operational Environment for the Small Unit Leader: Observations and Findings -- 3 Scientific Basis and Engineering Approaches for Improving Small Unit Decision Making -- 4 Recommendations -- Appendixes -- Appendix A: Biographies of Committee Members -- Appendix B: Summary of Committee Meetings and Site Visits -- Appendix C: Acronyms and Abbreviations -- Appendix D: Marine Corps Small Units -- Appendix E: Interview Protocol -- Appendix F: Biomarkers -- Appendix G: Dissenting Opinion.