You know, we've talked primarily about what happens on the factory floor, but the lean production system goes far beyond the factory floor. It involves relationships with supplier organizations, it involves the distribution system, it involves the product development system as well. The result of this is that in mass production you have a system that's geared towards producing a few things at very, very large scale, whereas in lean production you have a series of simultaneous benefits -- that you can not only produce products of higher quality and with less effort, but you can produce them in a much shorter product development cycle. You can do it with about a third of the effort, and you can get tremendous product diversity.