Future war needs a lot of changes for military organization. In this circumstance, it is importance the role of the Military Equipment Command Separation (MECS). In case of Korea Marine Corps, in spite of being MECS, Marine Corps has formed supply chain depended on Amy and Navy even it. Thus we proposed a new SCM of Marine Corps with Sense and Response concept. There are many problems and arguments to implement of new SCM. Therefore it is essential solving the problems but we don't know core problems and right solving directions. So, In this study, we present core problems deduction and selection of solving direction using TP(Thinking Process).