Who's making the decisions around here? Oh everyone in that committee over there! But they don't have the authority to make decisions. Ah I see. Actually no-one is making decisions around here. No? Ok. Let me see if I've got this right: If it's architecture decisions I need to speak with him. If it's timescale and priority decisions I need to speak with her. If it's decisions on requirements I need to speak with them over there. For this dependency I need to speak with him or her, except when it's relating to this, in which case I need to call her. And for this other dependency I need to contact this guy in India.
And why are you making the decisions all the way up there (in the hierarchy)? Look how many layers of management I need to get through to ask you to make a decision. Don't you trust those working at the coalface to make the decisions?
Getting decisions made in a hierarchical company organised by roles can be confusing, difficult and wasteful. I observed exactly this problem last night, in Can Gerry Robinson Fix the NHS? Obfuscated decision-making contributes to constipation.