Earlier quoted context omitted.
Humans play an important role in the continuous improvement process.
Absolutely. Continuing with the Toyota example, more direct human involvement with the manufacturing process has been reintroduced [1] [1] http://www.bloomberg.com/news/articles/2014-04-06/humans-rep...
It's probably the way not to do things if you want to get to affordable supercars. The only way is to program robots to manufacture the cars from start to finish, and the development should be in software (teaching the robots to work better)