Wal-Mart, a leading corporate advocate of diversity in the legal profession, is deploying new software to keep a watchful eye on its law firms and make sure the attorneys working on its matters are diverse... Miguel Rivera, Wal-Mart's associate general counsel for outside counsel management...[said] Wal-Mart...will drop law firms that don't meet diversity benchmarks, he said... The company works with 500 law firms on a regular basis and another 300 periodically. "We severed relationships with four firms because we didn't think they had the commitment," Rivera [said]... "[Companies are] insisting firms not just use diversity to get the work, but firms must illustrate the involvement of diverse attorneys on their accounts," said Fort Lauderdale attorney Eugene Pettis. [also refers to Marriott, Sara Lee, General Mills, DuPont]