Just found out some interesting bits:
Guillaume Cattelani, former Head of Aerodynamics at McLaren, now Chief Engineer – Technology and Analysis Tools at Red Bull since June.2020
Peter Machin, former Head of Aerodynamics at Renault, now Chief Aerodynamicist at AlphaTauri since December.2020
M. Betella, former Group Leader Vehicle Performace at Red Bull, now Head of Vehicle Dynamics Group at Mercedes since July.2020
G. Tortora, former Ferrari, now Deputy Chief Designer at Mercedes since July.2020
S. Fraser, former Head of Electronics at Haas, now Head of Electronics at Renault since April.2020
S. Hawkins, former Aerodynamicist at Racing Point, now Senior Aerodynamicist at Renault since October.2020