Shaun Edwards has made a big impact in a short time in the French set-up and Serge Betsen says Les Bleus are lucky to have the Englishman.
England are out of the Six Nations title race but they could have a major say in who takes the championship by beating France on Saturday.
Elliot Daly has been dropped to the bench as Max Malins gets his chance and France will unleash Virimi Vakatawa on England.
Jack Willis suffered serious knee ligament damage in England's loss to Italy and is facing a year on the sidelines.
Scrum-half Kieran Hardy has been released from the Wales Six Nations squad, while Dan Biggar also has an injury problem.
Aaron Smith has recommitted to the All Blacks, Highlanders and Manawatu ahead of the Rugby World Cup and some major career milestones.
Wales coach Wayne Pivac had little sympathy for England after his side benefitted from some contentious officiating in Saturday's clash.
Pascal Gauzere awarded two controversial first-half tries for Wales before England were punished for poor discipline in Cardiff.
England will be out to put a dent in Wales' Six Nations title hopes in Cardiff and enhance their own chances of retaining the trophy.
Wales will be out to make it three wins from three in the 2021 Six Nations when they face England on a milestone occasion for George North.