It might be one of those apocryphal engineering war stories, but one I've heard a few times: a consulting company is brought in by management with a pretty obvious goal of ratifying something management already wanted to do. The in-house engineers know what's going on, and what management wants ratified, but they're supposed to work with this consulting firm. The engineers at the consulting firm know that they're probably being asked to ratify some already-made decision, and their job is basically to find out what it is and recommend that. Early on, the in-house engineers just spill to the beans to the consulting firm's engineers, and both groups more or less take it easy for three months, short-circuiting the usual charade while management on both sides thinks that some sort of consulting dance is going on.