A more cohesive theory, A System of Profound Knowledge, is presented in The New Economics,(Deming, 1994) and, according to Dr. Deming, "…provides a map of theory by which to understand the organizations that we work in." It is supported by four major tenets: Appreciation of a System, Theory of Knowledge, Theory of Variation, and Psychology. Many themes that are echoes of the Fourteen Points show up in various parts of the System of Profound Knowledge, particularly those relating to organizational purpose, driving out fear in an organization, and understanding the implications of variation. 
Systems theory describes ways in which management can turn their organization into a system, and the advantages of doing so. Optimization of parts of the system results in sub-optimization of the system. Dr. Deming’s writings describe as well many obstacles to creation of an organizational system, such as incentives for performance of one aspect of the system, internal competition, and the use of the performance appraisal.
The Theory of Knowledge describes a system for learning, and the importance and use of theory to promote learning. Deming presents the latest version of the Shewhart cycle, the Plan-Do-Study-Act (PDSA) cycle as a model for achieving this goal.
The Theory of Variation describes the need for management to understand variation, and to use this understanding to improve processes and systems. Deming describes management itself as primarily prediction, and an understanding of variation is critical to being able to predict, to separate the signal from the noise, the "common cause" variation from the "special cause" variation. 
Psychology comes into play in all aspects of the System of Profound Knowledge model. Management must be aware of underlying psychological influences if the business is ever to approach becoming a true system.