Gatland even cited the "watershed" defeat in Ireland in 2010 as a precedent. "We brought a lot of youngsters in after it and the focus was on building for the World Cup," he noted.
Jenkins' front-row companions Adam Jones and Richard Hibbard - stalwarts for years - will have taken note. Youngsters such as Dan Lydiate, Sam Warburton and Rhys Priestland, yet to hit the heights against Italy and Ireland, will also be desperate for a big performance against the French.
Even Leigh Halfpenny, the hero of last summer's Lions tour, has not been exempt from criticism. "You know as a player if you're not playing well that there will be consequences," Alex Cuthbert, the wing, said. "We all know international rugby is quite ruthless."
The question is whether the pressure of the occasion, the cauldron of noise under the closed roof in Cardiff, will help or hinder against an unpredictable France team.
There are valid concerns about this Wales side. It is not just that they did not match Ireland's intensity in Dublin. The front row does not look the dominant force of old. Questions persist about coping with driving mauls, about where Warburton is best deployed, about Priestland at first five-eighth and George North at centre. Most of all, about Gatland's philosophy of packing his team with big players and playing a physical, direct game.
It has been good enough to win them successive championships and Wales have been at pains to point out in the build-up that they have not become a bad side overnight. If they win today, and England beat Ireland at Twickenham tomorrow, the championship is wide open again.
It will be a key test against a France side boasting incredible talent but who are nowhere near the finished article. Expect fireworks up front while in the backs Wesley Fofana and Mathieu Bastareaud against Jamie Roberts and North should be worth the admission price alone.
Jenkins said he was confident that Wales' experience of performing in the face of adversity would win through. "We are at home, there will be a big atmosphere and we need to show what we are about. We are still in the tournament, and we have still got to aim for four out of five wins."
• Wales v France: Millennium Stadium, 8:50am today