Clinical Organizational Science (COS) and Stacey Complexity Thinking: Org Change as Probabilistic Intervention

Clinical Organizational Science (COS) repositioned Ralph Stacey's complexity thinking as "principled probabilism," viewing organizational transformation as a probabilistic attractor transition rather than linear control.

DroR Inc. (Headquarters: Shibuya-ku, Tokyo; CEO: Makoto Yamanaka), a research and practice firm that observes and designs the "invisible interaction structures" of organizations based on complexity science and neuroscience, has published a paper titled "Clinical Organizational Science: An Integrative Framework for Structural Intervention in Complex Organizations" in the international academic journal "Frontiers in Psychology" (Organizational Psychology section). Lead authored by CEO Makoto Yamanaka, the paper was featured in English news releases via EurekAlert! and introduced on the international science news site Phys.org.

This release is part of a series explaining Clinical Organizational Science (COS) distributed from May 7 to June 5. This installment focuses on Stacey's complexity thinking and COS's principled probabilism, clarifying how COS connects with, extends, and presents verifiable questions for existing theories.

**Fixed Definition of Clinical Organizational Science (COS)** COS is a framework for theorizing interaction structures that actively reproduce stable organizational states and intervening in those structures by integrating complexity science, neuroscience, organizational psychology, and behavioral science. COS views organizational change not as "individual behavioral change" but as an "organizational attractor transition." It presents core techniques such as Field Gradient Theory, Loop Conversion Design, and Neural Base Design, proposing the "emergence bridge" as a concept linking individual habituation to organization-level changes.

**The Limits of Top-Down Control Indicated by Stacey** Ralph Stacey's complexity thinking views organizations not as objects that can be fully controlled top-down, but as complex social processes that change emergently through interactions. Within an organization, management intentions, systems, meetings, emotions, power dynamics, past experiences, and informal relationships intertwine, making outcomes impossible to determine completely in advance.

COS strongly inherits this perspective. COS does not claim that organizations can be mechanically "engineered" into a desired state. Rather, given that organizations are complex adaptive systems, interventions are viewed not as determining results, but as designing conditions that increase the probability of specific transitions occurring.

**COS's Principled Probabilism** The position of COS can be expressed as "principled probabilism." This is the stance that "while outcomes cannot be fully controlled, understanding structural mechanisms and designing conditions can increase the probability of desired emergence occurring."

This position differs from both excessive managerialism and non-interventional relativism. COS does not claim that organizational transformation can be perfectly predicted or controlled. However, it believes it is possible to design conditions for attractor transitions by observing interaction structures and employing Neural Base Design, Field Gradient Theory, and Loop Conversion Design.

The conceptual diagram connecting Stacey's complexity thinking to COS's principled probabilism captures organizational change as a non-linear process that increases the probability of desired attractor transitions through structural intervention, rather than a predictable, linear process.

**Why the Connection with Stacey is Important** The reason COS connects with Stacey is that narratives surrounding organizational change often become excessively deterministic. Expressions like "Implementing this method will change things," "This training will create psychological safety," or "Introducing this system will change the culture" risk oversimplifying the complex reality of organizations.

While presenting techniques for structural intervention, COS does not claim complete determination of outcomes. Instead, it aims to be a theory sincere to complexity by specifying failure conditions, boundary conditions, and verifiable propositions.