From two tours at the Naval War College, Spruance understood both the roles and limitations of doctrine and principles, but the great sources of his success in World War II were luck, selfless ambition, skills acquired from study and experience, and innate talent.
Hughes, Wayne P. Jr.
"Clear Purpose, Comprehensive Execution—Raymond Ames Spruance (1886–1969),"
Naval War College Review: Vol. 62
, Article 8.
Available at: http://digital-commons.usnwc.edu/nwc-review/vol62/iss4/8