Really good point! I recently blogged about the problems of crystalized organizational processes or individual thinking schemas. Many ways of working that were once very functional have become fossilized behavior and just get in the way. But when you find these old ways inside departmental tribes, I can see how they would become intractable. Also, I used work in helping people to get jobs. We always tried to contact operations people because they always had great creative ideas. HR seldom liked these ideas even after they proved productive. And, if our only option was to go through HR from the beginning, we just didn't bother.