Eric Boullier has played down rumours Romain Grosjean is being lined up to replace Nick Heidfeld.
Renault is openly hoping for German veteran Heidfeld to step up his pace six races into his role substituting for the team's injured regular Robert Kubica.
"After starting the season with two podiums they (Renault) seem to be slipping back slightly," said veteran David Coulthard in his latest Telegraph column.
Leading GP2 driver Grosjean, managed by Renault's team boss Boullier, has been linked with Heidfeld's seat in recent days.
The Frenchman lost his Renault drive in 2009, after making his debut in difficult circumstances during the crashgate affair and the demise of the team's former management.
Asked what his immediate plans are for Grosjean, Boullier told Eurosport: "(To) leave him where he is.
"He has a roadmap to the completion of this season and he's following it well.
"We will not repeat the same mistakes of his past by bringing him back too soon," added Boullier.