Monisha Kalternborn has revealed that Sauber won't be pressured into running Sergey Sirotkin next season should the teenager not be ready.
Having signed a deal with three Russian backers, Sauber are expected to run Russian teenager Sirotkin in next year's Championship.
However, team boss Kalternborn insists if he is not ready, the team won't be forced to race him.
"There are three elements to this partnership," she explained to Sky Sports F1. "One of course being on the sponsorship side, the commercial benefits companies' have, one being on the technological side, which is a very big emphasis also - why they opted for us is also because of our track record like we had the partnership with Petronas.
"Then there is the driver in there but clearly nobody would pressurise the driver if things don't work. We are still convinced of him, everything's going fine, there is no reason to doubt him that he cannot do it also.
"But it was never a situation that if he was not there the rest is not there. It is three parts, so it's not really affected us because the partners we are talking to don't have as their primary target to get a Russian driver in there. They have their own targets as a company and that's what they are going to follow."
But, having said that, Kalternborn believes the 18-year-old is progressing well.
Following on from his Sochi demo run, Sirotkin recent spent time out on track in an old Ferrari F60 that was fitted with demonstration Pirelli tyres.
"We unfortunately couldn't test on the first planned day because of the rain, so the weather conditions were not ideal to do that. But on the second planned day actually he did a very good programme," she said.
"He did just a bit under 200km and he did a very good job. We don't want to go in to lap times because they really don't say that much, even if they are good. But he did a really good job.
"The engineers were very happy with him. It wasn't easy to drive the car because of his height, so it was really physically also very difficult. But he did really a good job. We have a programme where we know all what we have to do but we just have to be a bit flexible about the dates and [whether it's in] simulator or not, or tracks.
"That we can decide very quickly - if there's a move in there we change five days or whatever. Our very clear intention is to get him in to Formula 1."