This chapter highlights one strategically significant complexity in Australia’s Second World War: concurrency’s impact on labour distribution. In the absence of centralised planning, concurrency forced employing stakeholders to win their workforces through frank competition – a competition made all the more damaging, the Minister for War Organisation of Industry pointed out on the very eve of the Pacific War, by employers operating ‘in numerous watertight compartments’ in which each ignored their likely effect ‘on the man power resources of the Nation as a whole’.