GMP organisations need authority. Decisions have consequences, roles matter and certain responsibilities cannot simply be negotiated until everybody is comfortable. Quality has responsibilities that Operations does not have. Operations carries knowledge and accountability that cannot be replaced by someone reading a procedure from a distance. Management has to make decisions that individual functions cannot make alone.
The problem is therefore not power itself.
The more interesting question is how power behaves inside the system.
A function can be completely correct about its formal authority and still create a poor overall outcome if that authority is exercised without understanding the impact on the rest of the process.
Trust does not mean everybody agrees
I think trust is sometimes confused with harmony. In strong GMP teams, disagreement is normal. Quality and Operations should sometimes see a problem differently, because they are protecting different parts of the system.
Engineering may see technical feasibility, Operations may see daily execution, and Quality may see a control or compliance consequence that the others do not.
If everybody agrees immediately, I am not always reassured.
The value comes from being able to put those different perspectives on the table without the discussion turning into a contest over who has the highest organisational authority.
Trust allows people to disagree while remaining interested in what the other person is seeing.
Authority becomes fragile when it replaces explanation
Formal authority can end a discussion. It cannot necessarily improve the decision.
When people repeatedly hear “because Quality says so,” “because management decided,” or “because Engineering already froze the design,” the immediate question may be closed, but something else happens underneath. The organisation loses the opportunity to understand the protected objective behind the decision.
Over time, people begin complying with the authority rather than understanding the control.
That is a fragile form of compliance.
There are, of course, moments when somebody has to decide. But a strong decision can still make its reasoning visible: what are we protecting, what evidence do we have, what trade-off are we accepting, and what would make us revisit the decision?
Accountability becomes stronger when ownership is understood
The opposite problem is endless consensus, where nobody wants to make the final call because collaboration has been confused with collective ownership.
That is not what I mean either.
Good cross-functional working should make accountability clearer, not blur it. The relevant functions contribute their knowledge, assumptions are exposed, disagreement is understood and then the accountable owner makes the decision.
The difference is that authority is being used after understanding, rather than instead of it.
Performance emerges between functions
This is where power and performance meet.
A technically strong Engineering department, a rigorous QA organisation and an efficient Operations team can all perform well according to their own metrics while the overall process remains slow, fragmented or difficult to operate.
The organisation performs when those strengths connect.
Trust helps that happen because it makes information move earlier. People raise uncertainty before it becomes failure. They challenge without needing to win. They ask what another function is protecting before assuming obstruction. And they can accept a decision they did not prefer because they understand how it was reached.
That does not weaken authority. It makes authority easier to trust.

