"The easy availability of replacement labor, which allowed Taylor to choose only 'first-class men,' was an important condition for his system's success." The situation in the Soviet Union was very different. "Because work is so unrhythmic, the rational manager will hire more workers than he would need if supplies were even in order to have enough for storming. Because of the continuing labor shortage, managers are happy to pay needed workers more than the norm, either by issuing false job orders, assigning them to higher skill grades than they deserve on merit criteria, giving them 'loose' piece rates, or making what is supposed to be 'incentive' pay, premia for good work, effectively part of the normal wage. As Mary Mc Auley has suggested under these circumstances piece rates are not an incentive wage, but a way of justifying giving workers whatever they 'should' be getting, no matter what their pay is supposed to be according to the official norms."