A team can be accountable for an outcome without controlling the conditions that make it possible. Its work may depend on a shared service, a supplier, an approval process, or knowledge held by a person outside its reporting line. Each relationship can be reasonable in isolation while their combination creates a significant constraint.
The dependency becomes easy to overlook when every individual component has an owner. The service team owns availability. Procurement owns the contract. An operating team owns delivery. But nobody necessarily owns the question of what happens when the relationship between those components changes.
Name the relationship
A useful first step is to describe dependence as a condition rather than a list of assets. Instead of recording that a team uses a platform, record what must remain true about that platform for the team to meet its obligation. Access, capacity, response time, compatibility, and specific knowledge may each matter in different ways.
Next, identify who can notice a change in the condition and who can act on it. Those may be different people. An ownership gap becomes manageable when the monitoring and decision responsibilities are explicit, even if control remains distributed.
This does not mean centralizing every dependency or creating another layer of administration. It means bringing a small number of consequential relationships into view. The aim is to avoid discovering, during an interruption, that everyone maintained their own component while nobody maintained the assumption connecting them.
A dependency does not become strategic only when it fails. It is strategic whenever it materially limits the choices available to the organization.