There's three kinds of hiring in the tech industry. The proles must take an agility course of whiteboard coding interviews that maintain a pretense of objectivity, but actually are loyalty filter tests that only measure how much time are you willing to spend on studying shit books like "Cracking the Code Interview" which have no application in the real world.

Then there's the networked hire who basically lets people know he/she is on the market, and can land a job without having to spend 6 hours at a whiteboard answering trick questions about the space-time complexity of the interviewer's socks.

Finally, the super-networked can get in through an acquihire, so they don't have to feel bad about having spent a couple millions of investor money on their startup sabbatical.