In his autobiography, Sloan presents the annual model change as a way of improving the product. He is a little more or a Taylorist than Drucker.
Drucker argues that it is a way of bringing market forces to bear on units that cannot be decentralized.
We all see what we admire in the picture.
In a note that shows how thoroughly this discussion is rooted in 1946, Drucker notes that few organizations could afford an annual model change. “the annual model is something few industries could have”. (124) Many, many industries run on production cycles that are far shorter than a year. That is one of the changes that has happened in the past 50 years, a change that could not have been managed without software.