I once saw an expert witness talk about one of those projects. He went into mind-numbing detail and at the end was asked to summarize - not his opinion of the people who did the work, but of the work itself. He paused, then said, "Not everything was completely wrong, but everything was touched by error." It was a compelling, truthful, non-name-calling way of saying that everything was messed up.
He had gone around with an awl and a piece of white paper laminated to make it a white-board. He'd wipe off the last description, scribble the new one, tape or stab the paper next to the error, and take a picture. It was a great way to do the job-site inspection and note-taking and the final description all at once. He printed out 500 pages of pictures, and handed a CD to everyone, too.