The outbreak of World War II accentuated, and its conduct and immediate aftermath sustained, the mounting pressures on the jobber system and exposed its weaknesses more fully. These pressures upon the jobber emanated from three sources. First, the imperatives of the war economy facilitated the more intensive exploitation of labour. The jobber's traditional task, to reconcile workers to the demands of the mill-owners, became almost impossible to sustain. Indeed, it drew the full wrath of the workers upon the jobber.