Barraged by class-action law suits , negative press and criticism from unions , Wal-Mart is throwing its managers and human resources staff a lifeline . Wal-Mart also is looking at how it can build technology platforms to improve communications between employees and managers and is increasing the frequency of its employee satisfaction surveys to keep tabs on potential issues and overall morale . ``The one thing we have learned from our critics , even in those situations where we believed that they were off-base , is...











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