where such a contract would result in an improvement in quality of services or cost-efficiency, or both, compared to the previously awarded public service contract.
i gcás ina gcuirfeadh conradh den sórt sin feabhas ar chaighdeán na seirbhísí nó ar an gcost-éifeachtacht, nó orthu araon, le hais an chonartha seirbhíse poiblí a dámhadh roimhe sin.