Strategy Diamond vs. Blue Ocean Strategy
Blue Ocean Strategy is a philosophy for finding uncontested market space; the Strategy Diamond is a structural framework for defining any complete strategy, contested or not.
Blue Ocean Strategy, developed by W. Chan Kim and Renée Mauborgne, argues that the most valuable strategic moves create uncontested market space ('blue oceans') rather than competing head-on in existing, crowded markets ('red oceans'). Its core tools — the Strategy Canvas and the Four Actions Framework (eliminate, reduce, raise, create) — are aimed at reshaping value curves to make competition irrelevant.
The Strategy Diamond does not prescribe a particular competitive philosophy. It is a structural framework that applies equally to a blue-ocean strategy or a conventional, head-to-head competitive strategy — it simply requires that whichever approach is chosen, the five facets (arenas, vehicles, differentiators, staging, economic logic) are fully specified and mutually reinforcing.
In practice, a company pursuing a Blue Ocean approach can still use the Strategy Diamond to pressure-test it: an uncontested arena is still an arena choice, a new value curve is still a differentiator, and the strategy still needs a viable economic logic to be sustainable, not just novel.
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