Paddy Lowe has left Mercedes and is expected to move to Williams & Jame Allison to Mercedes to replace Lowe:-
Mercedes F1 director Paddy Lowe leaves team - F1 - Autosport
Frederick Vausseur has left his position as boss of Renault F1 team after one season. Renault are also looking to increase staff from little over 400 to 600.
Frederic Vasseur: Renault team principal leaves role - BBC Sport