Maurizio Arrivabene insists Ferrari are reorganising the team "without panicking" in the wake of James Allison's departure.
Last month it was confirmed that Allison was leaving Ferrari with Mattia Binotto replacing him with immediate effect.
The announcement was a blow to the Scuderia, who have struggled for form this season and have dropped to third in the championship.
Arrivabene said: "I don't want to talk about James, for personal reasons and company reasons.
"We are reorganising the team, first of all without panicking, because taking that decision means we are clear in mind about what to do with the organisation.
"We are looking forwards to the rest of the season and we know very well where we have to work.
"I can't give you all the detail, but we know where."
The team boss revealed that downforce has proven to be Ferrari's weak point of late while they are confident they have made inroads with their engine.
"I think in Canada we reacted quite well with the engine," he added.
"But if I look at the situation now and go back, I think we don't have great improvements in terms of downforce since Barcelona [the Spanish GP].
"You have two types of downforce, I don't have to teach you, one is the aerodynamic downforce, the other is mechanical downforce [grip].
"We have to work in that area as they have to talk together, and sometimes they talk a different language."
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