I think some of you might oppose what I'm about to say heavily and I really don't know if my rationale is reasonable but just hear this out.
I think Ferrari, and all the teams, should be employing native english speakers as their head of strategy and their race engineers. This might come off stupid and irrelevant at first but I've been thinking about it for a while and I cannot decide if it's really a thing or not.
Almost all F1 teams now are multinational companies that employs people from all around the world and almost all the time afaik english is, the universal medium of communication between team personnel, be it Mercedes or Ferrari, which is like a hypernationalistic company serving for their land and gives utmost importance to Italian. So in a medium like that being a native english speaker with good communication skills I think is a huge, very huge advantage because it seems to me being the head of strategy in a team does not simply require assessing the situation well, being aware of your team and rivals, optimizing the strategies, taking reasonable risks at the right moments but I think it also asks for good management of personnel around you and that takes good communication to begin with.
Now with that being said, I don't mean in any way that a non native english speaker guy cannot be succesful at his job as the head of strategy but I mean that it would be harder for him to execute his job than a native english speaker.