Hopefully they have a very clear, very well thought out plan for what needs to be demolished. I can only imagine a foreman telling a crane operator to not demolish anything salvagable and coming back from lunch with half the plant on the ground.

On a second note, why the hell does it seem like a lot of major projects start on a Friday? Wouldn't you wait until Monday to roll this out? I've seen this more than a few times with a project starting on a Thursday or Friday afternoon. Anyone know why?