Which of the following is not currently a popular management theory?

Theory W is not currently recognized as a popular management theory compared to the others listed. While Theory Y and Theory X are well-established concepts introduced by Douglas McGregor in the 1960s, focusing on the assumptions managers hold about employee motivation and behavior, Theory W presents a more recent and niche perspective that emphasizes the importance of workers' needs and well-being. This theory, although it has merit, has not gained widespread acceptance or recognition in the same manner as the traditional theories.

Situational Leadership, developed by Paul Hersey and Ken Blanchard, remains a prominent management framework that emphasizes adapting leadership styles based on the maturity and competence of the team members. The active application and continued discussion of these established theories in management practice highlight their relevance in current organizational contexts, contrasting with the lesser-known and less frequently referenced Theory W.