The question is, what really is at face value? "Employees [...] said the frustration with Awadallah’s leadership style had been building for months", and the ar

The question is, what really is at face value? "Employees [...] said the frustration with Awadallah’s leadership style had been building for months", and the article doesn't contain any direct claim that Google parted ways with him because of the manifesto. You could draw inferences from the timeline, and the article does seem to be written to encourage you to, but those are exactly the kind of inferences that are unreliable when you don't have all the facts.