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.

The adaptive strategy approach is most suitable for environments that are unpredictable and difficult to change. In these environments, it is difficult for companies to achieve sustainable competitive advantage pursuing the classical approach. Instead, companies aim to achieve a series of transient or short-term advantages by continually monitoring their environments and adjusting their objectives, updating their strategies, modifying their resources, and reconfiguring their capabilities.

The shaping strategy approach is most suitable for environments which are unpredictable but malleable. These environments usually exist in new industries where there are no established leaders or rules of competition. Many companies can enter these low barrier industries and introduce innovative business models, products, and services. Mature markets may also be ready to be disrupted if they are overserving major customer segments or not serving customers. The disruption is usually through business model innovation.

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. 

The adaptive strategy approach is evolutionary, necessitating the creation of solution hypotheses and testing them through experiments, then selecting promising options and scaling them up. The emphasis here lies in creating strategic flexibility. BCG research has identified strategy tools that can be used with the adaptive approach. These strategy tools include time-based competition, first mover advantage, dynamic capabilities, strategy as simple rules, adaptive advantage, and transient competitive advantage.