[port11]

I've worked for a Big 3 and can't say this happens that much.

What does happen is that you were pitched/sold by a perfect PowerPoint presented by a senior partner/manager, but all the work afterwards is done by the 26-year old fresh-out-of-MBA consultants. The partner is still responsible for the project, but mostly on a “I'll review your work later from an expensive restaurant I'll bill the client for”.

They'll also invent the wildest things when it comes to tech work. I was working as an expert on software development and integrations, and often had to tell clients that what the consultants promised is simply not possible.