JP 3-0, page 57

Joint Functions III-5 (SOF), functional component commanders typically exercise TACON over military capabilities or forces made available for tasking. (4) Support. Establishing support relationships between components (as described in JP 1, Doctrine for the Armed Forces of the United States), is a useful option to accomplish needed tasks. The JFC can establish support relationships among all functional and Service component commanders, such as for the coordination of operations in depth involving the joint force land component commander (JFLCC) and the joint force air component commander (JFACC). Within a joint force, the JFC may designate more than one supported commander simultaneously, and components may simultaneously receive and provide support for different missions, functions, or operations. For instance, a joint force special operations component commander (JFSOCC) may be supported for a direct-action mission while simultaneously supporting a JFLCC for a raid. Similarly, a joint force maritime component commander (JFMCC) may be supported for a sea control mission while simultaneously supporting a JFACC to achieve air superiority over the operational area. (5) Other authorities granted to commanders, and to subordinates as required, include administrative control, coordinating authority, and direct liaison authorized. JP 1, Doctrine for the Armed Forces of the United States, outlines the specific details for each command relationship. (6) The perceived benefits of “jointness” do not occur naturally just by virtue of C2 relationships. The integration necessary for effective joint operations requires explicit effort, can increase operational complexity, and will require additional training, technical and technological interoperability, liaison, and planning. Although effectiveness typically is more important than efficiency in joint operations, the JFC and component commanders must determine when the potential benefits of joint integration cannot compensate for the additional complicating factors. Synergy is a means to greater operational effectiveness, not an end in itself. The joint operations principle simplicity is always a key consideration. d. Control is inherent in command. To control is to manage and direct forces and functions consistent with a commander’s command authority. Control of forces and functions helps commanders and staffs compute requirements, allocate means, and integrate efforts. Control is necessary to determine the status of organizational effectiveness, identify variance from set standards, and correct deviations from these standards. Control permits commanders to acquire and apply means to support the mission and develop specific instructions from general guidance. Control provides the means for commanders to maintain freedom of action, delegate authority, direct operations from any location, and integrate and synchronize actions throughout the operational area. Ultimately, it provides commanders a means to measure, report, and correct performance. COMMON OPERATING PRECEPT Avoid combining capabilities where doing so adds complexity without compensating advantage.