Jacques Villeneuve has had another go at Lance Stroll, saying he needs a slower team-mate in order to “find a way to go faster.”
Stroll finished 16th last time out in Brazil, a race in which his soon-to-be-retired team-mate Felipe Massa was seventh.
It was a lacklustre drive from the rookie, who suffered a late puncture that meant he had to stop for a second time.
“It wasn’t impressive,” Villeneuve told Autosport. “He was about to get lapped by his team-mate.
“Then he blew a tyre so at least he has an excuse. It’s not a weekend to remember.”
Asked what Stroll needs to improve, JV replied: “Have a slower team-mate. He needs to find a way to go faster.”
He added: “You can’t just look at the points, you have to look at the pace. We haven’t really seen an improvement.
“Something has to happen during the winter because he’s been better than that in the other categories.
“He needs to figure something out. Maybe a new team-mate will be helpful.”