The editors conclude by uncovering similarities and differences among the contributors' theoretical approaches to development in the workplace and their own. From a recent extension of Werner's organismic-developmental theory, they focus their suggestions for future research on such issues as:
* unit of analysis
* the holistic and systemic nature of human behavior and experience
* broader conceptualizations of the person, of the environment, and of development
* the need for methodological eclecticism
* the complimentarity of basic and applied research.
Through this lens, they shed light on underlying reasons why the majority of authors have focused on the individual worker as a unit of analysis and then propose that future researchers more broadly define the basic concept of development in the workplace.