Renault have said they are open to delaying the arrival of new signing Marcin Budkowski following criticism from rival teams that his appointment is unfair.
The former FIA technical head resigned from his position within the governing body last week and is currently on a three-month period of gardening leave. Rival teams were angered by the short-length of the leave, considering Budkowski has deep knowledge of rival teams developments for the coming season.
Renault confirmed his signing on Friday, but didn't confirm a start date, but team boss Cyril Abiteboul says it could be as early as January, but they would be open to delaying it a further three months to appease rivals concerns.
"We always made it clear that we would not want to be aggressive in relation to that [his start date]," said Abiteboul.
"From a contractual point of view he could be available as soon as early next year [January], but we have had constructive discussions with the FIA. I believe that we are close to reaching an agreement for a start date that would make everyone be comfortable.
"I think the date of early April, which is basically twice his gardening provision, has been discussed. Nothing has been confirmed yet but that is something that we are completely prepared to entertain as far as we are concerned."
Abiteboul added that Budkowski would essentially replace Fred Vasseur, who left and joined Sauber earlier this year, in a non-technical position.
"Marcin is coming in a non-technical capacity," added Abiteboul. "He is coming in a senior position into the team, and I think it is a great career development for him.
"We tried something with Fred Vasseur which unfortunately did not work out, and Fred has now found a position with Sauber.
"There was still a gap and a position to be filled, simply because there is a lot to be done. There is lots to do and I just needed some help and someone I could trust and that can work alongside me, in particular in development of the Enstone team."