The Catalyst of Crisis: How External Triggers Expose Brittle Strategies

ZS's 2026 Pharma Industry Outlook identified a 15% tariff on pharmaceutical imports — combined with "U.S.-first" production incentives — as the primary forcing function behind a wave of emergency strategy reviews that stable competitive conditions had not triggered in years. Analysts estimated the tariffs would inject between $13 billion and $19 billion in unforeseen operational costs into the pharmaceutical industry. Companies that had not convened a strategic review of their supply chain geography in a decade were convening them in weeks.

Organizations that had not formally evaluated their API sourcing dependencies since the COVID supply disruptions were evaluating them again, with greater urgency and less lead time. What the tariff environment revealed about these organizations' strategies was not primarily about tariffs. It was about the assumptions baked into those strategies — about input cost stability, about regulatory predictability, about the durability of commercial models built around reimbursement structures that may not survive the legislative environment they were designed for. The external shock did not create the strategic vulnerability. It made the vulnerability visible.

This is the diagnostic function of external disruption that most organizations fail to use. The operational response to a tariff shock — renegotiating contracts, qualifying alternative suppliers, revising financial models — is the visible and urgent work. The strategic response — using the disruption to inventory the assumptions that the current strategy depends on and explicitly evaluating which of those assumptions have been invalidated — is the less visible and more consequential work.

Organizations that treat the disruption as a management problem to be solved and then returned to steady state miss the diagnostic signal. Organizations that treat it as a forced strategy review — a test of which elements of their strategy are genuinely resilient and which were contingent on conditions that no longer obtain — emerge with a stronger strategic position than the one they entered with.

What brittleness actually is

Henry Mintzberg and James Waters's foundational distinction between deliberate and emergent strategy provides a useful frame for understanding how brittleness develops. Deliberate strategies are those that execute according to intention. Emergent strategies are those that develop through patterns of action in response to conditions that the deliberate strategy did not anticipate.

Most functioning organizations have both: a deliberate strategy that describes where they intend to go and why, and an emergent layer of adaptations that have accumulated in response to the conditions they actually encountered. Brittleness develops when the deliberate strategy is treated as the complete description of the organization's strategic position — when the emergent adaptations are not surfaced, examined, and incorporated into the strategic logic — and when the assumptions of the deliberate strategy have drifted, over time, away from the conditions that actually govern the organization's environment.

The pharmaceutical company whose deliberate strategy assumes API cost stability at 2020 price levels, whose commercial model assumes a formulary access environment that has been legislatively altered, and whose partnership structure assumes regulatory predictability that a new administration has disrupted is not executing a current strategy. It is executing a historical one.

The gap between the strategy and the current reality has been papered over by operational adaptations that have never been examined at the strategic level. The tariff shock forces that examination — not because tariffs are the most strategically important development in the environment, but because they are sufficiently disruptive to overcome the organizational inertia that prevents strategy from being examined in stable conditions.

Using disruption as a strategic diagnostic

Pierre Wack's scenario planning methodology, developed at Royal Dutch Shell in the 1970s and subsequently validated across industries and disruption types, offers the most rigorous framework for converting external disruption into strategic insight. Wack's central contribution was not the scenario format — four quadrants and narrative descriptions of alternative futures — but the cognitive process that scenario development forces: the explicit articulation of the assumptions embedded in the current strategy, followed by the systematic stress-testing of those assumptions against conditions that the organization's planning process would not otherwise generate.

The value of the exercise is not forecasting accuracy. It is the surfacing of which strategic assumptions are most load-bearing and what happens to the strategy when those assumptions prove wrong.

Organizations that conduct genuine scenario work — not as a planning ritual but as a structured examination of their strategy's assumption architecture — before a disruption arrives know something that organizations without that work do not: which elements of their strategy are resilient across a range of environmental conditions, and which are contingent on conditions that could change.

When the disruption arrives, they can distinguish between the elements that require fundamental strategic rethinking and the elements that require operational adaptation. This distinction saves months of misdirected effort and prevents the most common failure mode of disruption response — treating every element of the strategy as equally in question when in fact most of it may be sound and one or two critical assumptions may need revision.

The organizations that emerge from disruptions with stronger strategic positions than they entered are those that treat the disruption's urgency as a resource rather than a burden — as the forcing function that finally creates the organizational conditions for honest strategic examination. The trade-off conversations that stable conditions make easy to defer, the assumption inventories that feel academic when nothing is forcing the question, the scenario work that competes for leadership time against operational demands: disruption makes all of these not just possible but necessary.

The organizations that use that necessity well are the ones that design their strategy processes to capture it — convening the examination while the urgency is present, producing decisions rather than analysis, and committing to the changes that the examination reveals before the disruption passes and the gravitational pull of the previous strategy reasserts itself.