4-2. The commander applies two principal inputs at the start of the planning process—the METL and the training assessment. Commanders identify tasks that support the METL. The training assessment compares the organization's current level of training proficiency with the desired level of warfighting proficiency. This desired level is defined in MTPs and other doctrinal literature. Commanders may make conscious decisions, based on their training assessment, to defer training for some tasks in which they are currently well trained.