It was John Tait Robertson!!!
As of 2011, Chelsea F.C. have not had a French manager in their history.
Rafael Benítez is the manager of chelsea fc
Chelsea sacked Ian Porterfield
Andres Villas-Boas, managing Chelsea.
John Robertson managed the new Chelsea FC from their foundation in May 1905 to October 1906.
Chelsea's current manager is Carlo Ancelotti
It was John Tait Robertson from May 1905 to October 1906.
Ruud Gullit the former Dutch international 1996-1998.
Ruud guilitt was a player and a manager as weii at Chelsea in 1993 with Viali from Juventus.