Implicitly, yes, some person is always doing the work. But in my experience a "DRI" culture is one where at the end of a meeting it's 100% clear what needs to be done and who is doing it. That doesn't happen in a lot of companies, because a lot of companies call meetings to brainstorm.

Two thoughts:

1) That's not something my department handles. Contact department B; a committee will review your question and their analysis will be considered at the next management committee team meeting at the end of the quarter.

2) Parliament / Congress