First, the use of dichotomous variables (predictability, malleability, and harshness) has resulted in the creation of a limited, coarse-grained strategy space. This is problematic because it means that fewer strategy approaches are identified to cover the strategy possibilities space, and these approaches are broad (i.e., umbrella approaches). This has resulted in a loss of precision in guiding the selection of the appropriate strategy. Take for example the umbrella strategy approach of adaptation, which has been operationalized primarily through continuous experimentation. Within this umbrella approach, there are several approaches such as static and dynamic robust strategy approaches [], which would only be revealed if the predictability dimension incorporated a greater number of states. This would help create a richer, more textured, and nuanced strategy space which differentiates between the varying levels of uncertainty [].

The Strategy Palette is one of the more recent and probably the most recognized framework for selecting the appropriate strategy approach. The framework’s use of dichotomous variables with low and high values makes it simple and easy to understand. It does not stop at identifying the strategy approaches, instead further linking them with the relevant strategy tools. BCG also has an interactive website for the strategy tools providing a short description of the tool, its author(s), and the original reference. The linking of the various strategy tools to strategy approaches allows for the creation of a strategy toolbox for each approach that can be used by strategists []. Moreover, the book provides several case studies and vignettes to explicate the strategy approaches.

BCG’s Strategy Palette is based on three key contingent variables: unpredictability, malleability, and harshness, resulting in five strategy approaches: classical, adaptive, shaping, visionary, and renewal. It serves as a good introduction to strategy approaches and provides guidance on the relevant strategy tools that can be utilized for each approach. However, using only dichotomous variables makes this a more reductionist framework which does not lend itself towards capturing the different degrees of variation and complexity within the variables. Therefore, it does not allow for a more extensive and pertinent set of strategy approaches to be considered. 

Finally, the book and its accompanying website cover strategy tools and link them to the five strategy approaches, creating five strategy toolboxes. This is a good development but one with insufficient coverage of the available strategy tools. In my research on strategy tools covering the same period (-), I identified over strategy tools. Some of these strategy tools include backcasting [], business wargaming [], assumption-based planning [], strategy under uncertainty [], the three horizons framework [], strategy diamond [], portfolio of initiatives [], strategy as active waiting [], the strategy tripod framework [], and capabilities-driven strategy []. BCG’s narrow coverage of strategy tools combined with fewer strategy approaches results in limited and incomplete strategy toolboxes and consequently, inadequate strategy guidance.

The classical strategy approach is most suitable for stable environments which are predictable, where the rules of competition or conduct are well-established, making them non-malleable. These predictable and non-malleable environments are continuations of the past. Hence, the bases for achieving sustainable competitive advantage are known and can be achieved through competitive positioning using differentiation or cost leadership through scale.