Henry Ford invented mass production. In doing so, he perfected the assembly line concept in which each worker does only one job or a handful of jobs and is given little other responsibility. This...

Henry Ford invented mass production. In doing so, he perfected the

assembly line concept in which each worker does only one job or a handful of jobs and is given little other responsibility. This worked well for 70 years; however, it became apparent in the 1990s that an increasing number of U.S. companies could not produce a high-quality product by sticking to the assembly line model. What has changed?