Renault has appointed Thierry Koskas as the head of its Formula 1 programme.
Frenchman Koskas will replace Renault Sport president Jerome Stoll on 1 January, as the team seeks to close the gap on Mercedes, Ferrari and Red Bull.
Renault could therefore face the difficult choice of either accepting it is unlikely to catch the top three teams at its current level of spending, increasing its budget to a level it did not initially want to, or waiting for the the cost-control measures to kick in and accepting that it might take longer to achieve its targets.

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