In the 1960s few defense planning topics stimulated more debate and deeply felt opinion than the introduction of "systems analysis" as an official defense management tool by Secretary of Defense Robert McNamara.
Tarpgaard, Peter T.
"McNamara and the Rise of Analysis in Defense Planning: A Retrospective,"
Naval War College Review: Vol. 48
, Article 8.
Available at: https://digital-commons.usnwc.edu/nwc-review/vol48/iss4/8