The subject of office design has changed considerably over the last decade, moving from a focus on ergonomics to creating a workspace that enhances efficiency. Surprisingly, office design has drawn the serious attention of upper-level management, including serious financial investments in the open-office design theory. According to the Daily Mail, the "Googleplex" (Google's CA-based HQ) was a $120 million investment with an emphasis on "casual collisions of the work force."