That was the article title I saw as I was searching for something else (article in Portuguese). Refers to manufacturing, when waste occurs in inventory, time loss, movement of people, among others. Fascinating from that standpoint, the list seeks to contribute to a leaner process with less waste and, therefore, higher profits.
That got me to thinking, and I throw out the question, barely formed in my own mind, to you:
What types of wastefulness exist in the church and in the work of the Lord?
With your help in making up a list, seems it might be the seed for a good class, article, or lesson.