BRIDGES Model for Intergroup Leadership
BRIDGES Model for Intergroup Leadership
Most leadership models stop at the edge of the team.
Leadership development concentrates on individuals and on teams. The friction that actually slows organizations down sits in the space between groups — where functions talk past each other, compete for influence, and quietly stop sharing what the other needs.
The BRIDGES Model for Intergroup Leadership is about that space: how leaders shape the way groups relate, and how that capability matures.
What the model measures
BRIDGES works on two dimensions. Rhetoric is the clarity and reach of shared language — whether a leader's words build a common identity across groups or reinforce separate ones. Boundary-spanning is permeability — how readily people, information and trust actually cross the lines between groups.
Together they define seven levels of Intergroup Leadership Maturity, from Isolated to Harmonized. The levels describe how communication and collaboration change as friction falls and trust accumulates — and, importantly, how organizations regress under stress or reorganization.
What it consists of
- A practical rubric for measuring Intergroup Leadership Maturity
- A method for coaching intergroup leadership inside organizations
- The book SILO is a Four-Letter Word
Where it comes from
BRIDGES builds on the seminal doctoral research into intergroup leadership in large U.S. organizations — research whose author cosigned the model and wrote the book's preface. That study examined how senior leaders describe the skills that let collaboration cross boundaries, and it is grounded in social identity theory.
The model is the invention that sits on top of it: the rubric, the coaching method and the book are not in the research.
The rest of the framework set
BRIDGES covers how groups relate. The other two cover how organizations learn to think with AI, and how they build the capacity to innovate without becoming reckless.
Where do your groups stop talking to each other?
Most organizations can name the boundary that costs them the most. Start there, and the maturity picture usually explains the rest.