There was merely a high demand for productivity with little compensation to be had for the ridiculously high demand of productivity. Yes the pay was relatively nice (not enough to sustain ones self) but there was no real incentive to work at the pace that they expected to be every employees bare minimum.
My time working at Fedex was a great experience. Employees was good with helping each other out when another employee was running behind. Also employees would call each before they clocked to make sure you were ok