Tarek Ragheb–who has headed the Gulfstream sales organization in Europe, the Middle East and Africa (EMEA) for the past 18 years–is assuming new responsibilities for advising and supporting the group he helped develop, the company said yesterday. In his new role as senior adviser to the international sales team for EMEA, Ragheb will provide strategic guidance and counsel to the staff. Ragheb was most recently regional senior vice president of EMEA international sales.