Markel, the insurance operations within Markel Group Inc. (NYSE:MKL), today announced that it has made three internal promotions and hired a Technical Claims Lead to further enhance its award-winning Wholesale Claims service for brokers, insureds and trading partners. The quartet of appointments include Dan Thomas, who’s joined the business as Marine Technical Claims Lead, where he’ll work closely as part of Markel’s Marine Liability Claims team with the underwriters by providing feedback on policy wordings and...