These “heavy” production jobs were streamlined and organized into mass assembly line production. With this new manufacturing structure, the wage structure of employees also changed, so that it was no longer beneficial to hire women as cheaper labor. Although during this transformation the justification that auto work was too arduous and that women were not physically capable became invalid, employers still did not favor female workers. Ngai would argue that these employers did not favor female employees at this time because they wanted to create a workforce with the desired composition. One way they did this was by making job specifications so specific that women couldn't get the degrees, even if they were already doing exactly those jobs during the war. The Fordist revolution laid the foundation for automobile manufacturing to “develop as a high-wage, capital-intensive industry; thus, employers had little incentive to replace female labor with its more expensive male equivalent', and consequently the greater convenience of hiring female labor was abolished. Additionally, it was not until World War II, when male workers crossed seas to fight, that these employers were pressured to hire black and female workers. Female workers were easily replaceable and what employers ultimately wanted was a strong man.