[waterlesscloud]

In my experience large, successful companies can be harboring a very large number of incompetent or irrelevant managers. The parts of the company that work often do so spectacularly and sometimes carry the bulk of the company that's broken.

Eventually the tide goes out and reveals who's been swimming naked, but that can take decades.

The point is- you definitely cannot look at a successful company and infer that all (or even most) of management knows what its doing.