"It will take them a lot of time to get back on top. Why? I'll keep that to myself," the Frenchman is quoted by Italiaracing.
Undoubtedly, Ferrari is indeed making sweeping and significant changes.
La Gazzetta dello Sport reports that, in the last few days, ten new engineers started work at Maranello, including three engine experts from dominant Mercedes.
The report also claims Ferrari has successfully wooed three aerodynamicists from reigning quadruple world champion Red Bull, as well as a simulation expert.
"I have ordered a strong discontinuity on the technical side," team boss Marco Mattiacci is quoted as saying.
And the head of Ferrari's current engine chief, Luca Marmorini, is expected to roll.
"I do not name names," Mattiacci insisted, "but we are redesigning our organisation."