One thing to keep in mind when comparing these sorts of stories is that studied have shown that any change in a work environment is liable to increase productivity over the short term. The break in the old patterns of working tends to make people think and concentrate on their work more, which causes a short term rise in production.*
Jay
* And before some PHP thinks about it, it doesn't work over the long term. After a enough changes in short a short period of time the employees are numb to the changes and output will fall even further.