Italian magazine Autosprint is linking Red Bull's aerodynamics chief Peter Prodromou with a move to Mercedes GP.
The dominant RB7's creator Adrian Newey is not interested in switching camps for now, but 42-year-old Prodromou also worked closely alongside the talented Briton at McLaren.
Also rumoured this week is that Ferrari's new technical boss Pat Fry is working on moving two key engineers to the famous Italian team from his former employer McLaren.
Finland's Turun Sanomat and other newspapers even named Fry's apparent targets: senior aerodynamicist Rupad Darekar and CFD expert Ioannis Veloudis.
Sources at Ferrari neither confirmed nor denied the speculation.
Much of the credit for Fernando Alonso's Silverstone win has been credited to recent aerodynamic improvements.
"Now with better aerodynamics and better understanding of the tyres, we will constantly improve," Alonso's race engineer Andrea Stella said.
Meanwhile, Italiaracing reports that Force India is in talks with Williams' departing technical director Sam Michael.