He added: "We have a lot of potential, but the difficulty is to put everybody together, everything together to create more performance, which is what I'm assessing now."
Asked about how his search for a team principal is going, he responded: “I have no delay, because I don't want to be under pressure.
"For the time being I'm assessing everything. I think the changes I've seen so far are quite good. On the track side, as I said, I'm very happy with the drivers the job they are doing the spirit we have.
"Of course, the main point will be now to really see how we can get the same kind of spirit in the factories. And that's really the point I'm focusing on. It's not a question of [a] person, it's a question of having all the people together."
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