Ah, well, the ideal anyway for Agile is that's the team.
The team's always in the fire, but generally the "big" guy is the one that takes responsibility for driving the project. You can't have a 100+ person "team" owning a project. Someone needs to be the grown up.
Wait, what? OK, by "PM" do you mean Product Manager (guy who's constantly visiting customers, or at least on the phone with them, often has an MBA), or a Project Manager (useless wanker).
the latter, and generally aptly described. Although on larger projects, they can be useful as long as they stay in their tracking role.
I've never seen Agile done well at companies that still employed the latter (but then I've never done consulting).
I've done some consulting over the years, mostly to rescue failing projects. But I've spent time in enough companies as an established employee to know the consulting experiences were by no means unique.
Sounds like "Scrum consultants" selling snake oil, then moving on to the next victims ahead of the angry mob.
As you can tell from my posts, I pretty much consider Agile itself snake oil.
Agile achieves 3 things if done right: much less throw-away work, early integration for fewer last-minute surprises, and a dev team who's emotionally committed to the dates, rather than hating management for the dates and wanting to hurt them in return. Those can make a pretty significant difference, but if you have intelligent, non-dickish management to begin with then only the first really changes (and if management is bad enough, nothing gets better).
I guess my point is that Agile just generally doesn't work the way it's pitched for projects that I work on, and is highly unpleasant and/or inefficient when people attempt to use some or all of it. To me, the only person that really benefits from the whole thing is the PM (either one actually) because they can see the lack of progress that results, all the while selling it up the chain as an accomplishment. I've seen several directors on up fired over the years for doing precisely that, only to be replaced by another Agile proponent that immediately starts having hour long scrums, because, obviously, people aren't getting enough work done. This is fine when I can stay on the outside, but these things are usually black holes that take in everyone near them. Then it's time to bail.