RACI Decay
When 4+ people are 'Responsible' for something, nobody is. Accountability needs a single name.
Why PMs should care
RACI matrices fail in one predictable way: the Responsible column bloats. A decision with one clear name against it moves in a week. A decision with four names moves in a quarter.
This is the bystander effect in corporate form. Each person assumes one of the others will pick it up, nobody does, and the ticket quietly ages in a backlog until someone escalates.
The fix isn't to write better RACI documents. It's to make Accountable singular and visible, and to push back against the drift toward Responsible plural. One name gets the 3am Slack. Everyone else is a consulted opinion.
The social difficulty: putting a single name against a controversial decision feels politically expensive. Nobody wants to be the one publicly accountable for a line that might fail. Which is exactly why product teams quietly let the Responsible column fill up with three or four names as a form of shared safety.
That shared safety is the failure mode.
Example in product work
A cross-team workstream to migrate the sanctions-screening vendor has six people marked Responsible in the kickoff deck: the PM, the tech lead, the compliance analyst, the procurement lead, the legal partner, and the finance BP.
— Week 1: everyone nods in the kickoff.
— Week 3: a contract clause needs a decision. The Slack message goes to a channel with all six; each assumes one of the others is driving.
— Week 6: the clause is still open and the engineering work is blocked waiting for it.
The PM calls a thirty-minute meeting, produces a single RACI row, and assigns the contract decision to one named person (the legal partner), with a deadline (Friday) and a named Accountable (the PM herself, on behalf of the workstream).
Decision closed within 48 hours. Nothing else changed — no new information, no new context — only the singular name and the singular deadline.
RACI failures almost always look like this in slow motion.
What to do when you see it
- A decision with one clear name against it moves in a week. A decision with four names moves in a quarter.
- This is the bystander effect in corporate form. Each person assumes one of the others will pick it up. Nobody does.
- The fix isn't better RACI documentation. It's making Accountable singular and visible, and resisting the drift toward Responsible plural.
- One name gets the 3am Slack. Everyone else is a consulted opinion.
Sources & further reading
- Who Has the D? How Clear Decision Roles Enhance Organizational Performance — HBR, Rogers & Blenko, 2006The HBR article on decision rights (RAPID) that explains why responsibility frameworks decay without active maintenance.
- The RACI Matrix — Project Management InstitutePMI's foundational guidance on responsibility assignment and RACI charts.