Final answer:
Without specific details, it's hard to pinpoint the element not part of the new MPS structure, but logistics or direct combat roles typically don't fall under MPS responsibilities.
Step-by-step explanation:
The element that is not part of the new military personnel section (MPS) structure is difficult to specify without further details, as the structure can vary by country and service branch. However, typically, the MPS consists of various departments, such as human resources, finance, education and training, promotions, retirements, separations, and casualty assistance, among others. Therefore, an element like logistics or direct combat roles would generally not fall under the purview of the MPS.