This article via The Academy of Management, has been described as a 'classic' article in generating group-based PME discussions for a number of decades within Army. The author uses multiple examples from society to illustrate that human beings seek to understand which activities are rewarded and which are not.

This article from Combat Training Centre is designed to apply some rigour around what should be a ‘drill’ and also to inform participants in the process of their role, inputs and outputs.