The article presents information on a research study which compared the mindsets of military officers and private security contractors. The results are discussed in terms of U.S. military professionalism. The study indicated a need for better clarification of legal responsibilities in terms of contractor relations with the military. The study is also said to support the view that military combat roles should not be outsourced.
Schaub, Jr., Gary and Franke Volker. "Contractors as Military Professionals?" Parameters: US Army War College 39.4 (2009) 88-104.