"The new approach includes a new “rule of five” that limits the number of interviews a candidate can attend to no more than that number, said Laszlo Bock, head of human resources. In the past, would-be Googlers were often subjected to 12-14 interviews, he added."
Wow, they actually consider 5 interviews to be a lean approach to interviewing; no wonder their process is convoluted. Methinks Google seriously needs to rethink their org structure.