When a strategic goal or goals (aka "mission needs") are supported by an executable implementation the result is a "strategic advantage". A "strategic advantage" may also be called a differentiator (commercial use) or a "capability" (mainly government use). Enterprise architecture is commonly and routinely associated with the production of these "capabillities" or "differentiators" that constitute a "strategic advantage". Many are unaware of this linkage because of disparate terminology, but one common definition of enterprise architecture is "the link between strategy and execution" which is again roughly synonamous.
Michael Porter called this Competiitive Advantage.
Examples:
TOGAF 9 includes a section of capabilities based planning
DODAF is tightly associated with JCIDS (Joint Capabillities Integration and Development System).
DODAF 2.0 includes a capabilities metamodel.
Zachman International provides seminars for using EA to produce business advantage.
"If you do anything long enough, you eventually get good at it." MK