There she blows! (The Moby Dick Theory of Big Companies)

Having spent some time in the belly of the whale[1], I can testify that the decision making process of a large company is indeed a chaotic system even when seen from the inside.  The variables that control decisions are very well hidden.

The Pmarca Guide to Startups, part 5: The Moby Dick theory of big companies

[1] In the same whale as pmarca in fact, though in a somewhat different location along the alimentary tract.