On the heels of a record setting sex discrimination lawsuit against Wal-Mart, the lawyers in that case have filed a second discrimination suit, this time against Costco Wholesale Corporation. The suit, filed on Tuesday, alleges that the company kept women out of top store management posts. According to the complainant, women make up half of the companies workforce, but fewer than one in six of Costco's top store managers are women. Costco's annual staff turnover is under 23-percent among hourly workers, while Wal-Mart's is 50-percent. The company has been criticized by stockholder's because it offers better pay and benefits than Wal-Mart, creating higher costs.