Communication was a big problem is this case study. The PM was trying to get the job done, with no help from the Architect or a consultant. The PM took most of the blame, when there should have not been a bid error because there is always a proposal. The Architect have to review and then approve it before anything gets started.
The Architect distance himself because he probably did not wanted to be part of a poor group project with errors. The Owner did not wanted to pay a PM who is experience because a new PM would be a lot cheaper because they are just trying to get a job even if they are charging probably 50% less than experience PM.
This shows that trying to get the job done fast and cheap could become very expensive towards the end.