Some conflicting interests can be resolved through negotiation, some cannot. Finally, the dominant coalition also changes over time. It also seems likely that the corporation as a whole can instil interests in specific individuals and groups, particularily toward ensuring organizational survival. Labor as a collective also can wield power in organizations through union activitiy, strikes, slowdowns, etc. Individuals and groups that interface with important resource suppliers, regulatory agencies also gain extensive power within organizations.
Pervasiveness is the the degree that workflows of a particular subunit connect with other units.
The higher the centrality, the greater the power. Hickson et al's study of 28 departments in 7 organizations supported these propositions. The order of importance was coping with uncertainty, immediacy, nonsubstituability, and pervasiveness.