Home Law Differences in Substance of Offerors’ Proposals Belie Argument of Unequal Treatment; GAO... LawNewsResource Library Differences in Substance of Offerors’ Proposals Belie Argument of Unequal Treatment; GAO B-411962.5, The Concourse Group, LLC February 8, 2017 40 Share FacebookLinkedinTwitter You must be a Paid or Free Trial Member to Access this Content. Paid members, please login to view your news subscription(s). RELATED ARTICLESMORE FROM AUTHOR Law A Good Man Is Hard to Find: Recruitment Issues Doom Protester’s Quotation Law Protester Said Past Performance Evaluation Overemphasized Negatives. Why Did GAO Think It Was Fair? Law Protester Wanted a Solicitation Amendment. GAO Wasn’t Convinced.