The focus on improving the supply chain is now more acute than ever. This is especially the case in long supply industries such as aerospace and automotive where initiatives such as SC21 and Lean have not had the impact that many had hoped.

The question is what to do about it. Certainly, as this article suggests, the processes of supply need to be analysed in greater depth so that they can be redefined from the human perspective as well as the machine perspective. That means investigating the human activities which lead to the metrics: the causes of the SQDIP results.

SC21 and Lean are not dead. But there is much that can be done to improve them.