You might think that the weekly or biweekly project review does that, and you would be right. But we've been in hundreds of project review meetings ourselves, and the amount of professional, helpful candor that can appear in them, as opposed to blame shifting and defensiveness, is quite small. You can't give feedback. There are too many empty moments during which everyone knows what's going on but nobody wants to say it out loud. That's not a problem in PMO3s.
