U.S. Joint Services, Roles, Functions, Limitations, and Capabilities portions and objectives of the Chairman of the Joint Chiefs of Staff, IAW CJCSI 1805.01B, 15 May 2015. The DJIIMO emphasized using critical thinking, analysis, and problem solving to explore the application of Joint doctrine. By applying these principles to a complex problem set, you were able to develop a perspective of leadership at the operational and strategic level. What does this information mean? What conclusions can be drawn from this? How can this information be used? How does this fit with my existing knowledge and experiences? What are the implications of this for others or me? What is the big picture and how does this fit into it