Heh, a few weeks back a new project manager at my work held a meeting about an upcoming project, and half the team was able to say the timeline was workable, but the specifics the project manager laid out would lead to disaster, and we just had to adjust the strategy, but still have same time and same cost. We spelled out exactly what would go wrong and how, based on previous attempts to do it the way he said. It was scheduled to be a weeklong project, which would have been a fine timeline.

He got stubborn, insisted that based on his research his approach was right, and while he would have us on standby in the unlikely event of a problem, he would largely outsource the project to a company that agreed with his plan.

So the project started Monday, and based on past experience we expected to be called into action on Tuesday morning and have to hustle, or maybe Tuesday end of day and really get overworked to close it in time. So Friday comes along and we are shocked that it must be going ok since we hadn't heard anything. 4pm rolls around, the project manager calls us in a panic saying it's all gone nowhere, zero progress made, and he has escalated to make sure we take over and now we had to make the Monday morning deadline, or our asses are screwed. Everyone worked their asses off, a couple didn't sleep the whole weekend.

So in a followup call, the project manager said "no one could have predicted it would go so badly", and then an email came out from executive team congratulating the project manager for making the project work despite challenging circumstances.