How to Influence Without Authority
Most of us spend our careers trying to get things done through people we don't control. The Cohen–Bradford model gives you a principled, relationship-first framework for doing exactly that.
In 1989, Allan Cohen and David Bradford introduced a model built on a deceptively simple premise: influence is not about authority or persuasion — it's about exchange. If you understand what someone values, and you can offer something meaningful in return, you can work with almost anyone. The model doesn't ask you to be manipulative or calculating. It asks you to be genuinely curious about the people around you.
"Influence is not about getting people to do what you want. It's about finding alignment between what you need and what they care about."
Assume everyone is a potential ally
The first move is a mental one. It's easy to approach a difficult stakeholder with suspicion — especially if they've blocked you before. But that posture closes off the very possibilities the model depends on. Start from good faith, and you start asking better questions: not "how do I get around this person?" but "what would make this person want to help?"
Understand their world before making your ask
This is the step most people skip, and it's where most influence attempts fail. Before raising what you need, invest real effort in understanding your ally's situation — their pressures, priorities, and what success looks like for them. When people feel genuinely understood, they open up. When they sense that your interest is instrumental rather than real, trust evaporates. The understanding has to be authentic.
Identify the right currencies
Cohen and Bradford describe the things people value as currencies — and different people are motivated by very different ones. Some are driven by inspiration: being part of something meaningful, reaching a high standard, or working in line with their values. Others are most motivated by task-related help — resources, assistance, or anything that makes their own work easier. Many care deeply about position: recognition from the right people, visibility with senior leaders, or protection of their reputation. And some respond most to relationship currencies — feeling genuinely heard, accepted, and supported as a person.
The skill is in reading which currencies matter to this person, and offering something real rather than defaulting to what you find most natural to give. Offering visibility to someone who craves autonomy, or inspiration to someone who just needs practical help, will fall flat no matter how sincerely it's offered.
Build the account before you spend it
Cohen and Bradford use the metaphor of a bank account. Every time you help someone, share useful information, give credit where it's due, or show up reliably, you make a deposit. Every time you ask for something, you draw on it. Influence becomes sustainable when you've invested before you need to withdraw — and when people know that working with you is genuinely worth their while.
Make the exchange openly and honestly
When you're ready to ask, be direct. Say what you need, acknowledge what you're offering, and make it easy for the other person to engage. Something like: "I know you're stretched — if I can take the reporting off your plate, would you be able to join the working group?" is far more effective than hinting obliquely and hoping they read between the lines. The model works because it's grounded in honest exchange — and that honesty is what separates influence from manipulation.
The Cohen–Bradford model is most useful in matrix organisations, cross-functional projects, and any situation where you need to move things forward without a direct reporting line. But more broadly, it's a way of working — a posture of curiosity and reciprocity that, practised consistently, shapes the quality of every professional relationship you have.
