Comment by anthuswilliams

You still have a DRI. In factories this would be a foreman; in software teams this could be a team lead or product owner or whatever. Their job is to apply the statistical process controls and the gemba walk, to help the team see the problems and develop the causal mental model for why the problems happen. They hold the team responsible, together, for combatting the issues so uncovered. They know who is not pulling their weight.

Of course, to do that, a business, and in turn the DRI, would have to empower the team to act in its business's best interest and stop micromanaging them.