Williams will not wait too long for McLaren to make a decision on Jenson Button, although it is keen to secure the services of the 2009 world champion.
Button’s contract with McLaren expires at the end of the current season, with the Woking-based team having an option to extend it for another year.
The British team has to decide between the experience of Button and the youth of Stoffel Vandoorne, who scored points on his debut in Bahrain earlier this year.
Although Claire Williams would like to see the 36-year-old rejoin the squad, she would have to look at other options if McLaren doesn’t come up with a decision in the near future.
"We will own our driver line-up decision, and I am not sat here waiting for [McLaren chairman] Ron Dennis to make his decision or for Jenson to make his decision," Williams told the Press Association.
"It it is not about what other people are doing. I am not going to be waiting around because that is just not the right mentality for a team like ours to have.
"It would be a great story, but he has to make the right choice for him, and we have to make the right choice for the team."
Sergio Perez has emerged as a leading contender for a Williams seat, on the back of two podium finishes in the first half of the season.
"Sergio has done a great job this year, he is an intelligent driver, and of course he is going to be someone we are looking at.
"I have only met him briefly on the odd occasion. He is very charming. He is very eloquent, so commercially he would be strong for any team.
"Of course he is going to be someone you'd consider if he is available."
by Rachit Thukral