Part of our purpose in presenting this series of case studies is to provide training material for in‐plant and college courses. This particular study is very rich in training content and my comments are designed to enhance its training value. Basically what the trainer has to do is to use the material to arrive at certain principles which have universal relevance. At this stage these principles are just beginning to emerge but at a later stage we propose to gather them together, to cross‐relate them and to form them into a coherent company policy.