Google shat the bed by hiring a bunch of incompetent execs from culturally defective companies like Oracle and not telling them to wipe their fucking feet off at the door. So they tracked a bunch of shit into the place.
The rank-and-file engineers at Google are a really amazing crop of people, and the founders and early architects were (and still are) brilliant, but the middle-managers and execs hired from without are so incompetent that they are flying a plane into the company (the three-word "mission statements", that idiotic stack-ranking, the idiocy that was downslotting).