In the confidential memo sent to Wal-Mart 's board last year , M. Susan Chambers , who was recently promoted to be Wal-Mart 's executive vice president in charge of human resources , questioned whether it was cost-efficient to employ longtime workers . ''
M. Susan Chambers /business/person/company Wal-Mart
M. Susan Chambers /business/person/company Wal-Mart
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