Serge Betsen has backed France head coach Guy Noves to get the best out of the country's "new generation".
Noves, who enjoyed regular success in more than two decades at the helm of Toulouse, replaced Philippe Saint-Andre following last year's Rugby World Cup and is overseeing his first Six Nations campaign.
After claiming narrow victories over Italy and Ireland, France were beaten 19-10 by Wales in Cardiff last time out and must get the better of Scotland this weekend to keep their slim title hopes alive.
Betsen, capped 63 times by France between 1997 and 2007, is confident Noves can ultimately enjoy success with a team presently in transition.
Speaking at the Tissot Flagship Boutique in central London, Betsen told Omnisport: "The potential of France is here. A new generation is coming in. They have a leader, the captain Guilhem Guirado, [and] I believe in Guy Noves.
"I think he [Noves] showed he has the qualities to bring up a new generation during his time at Toulouse.
"He has four years to enable France to realise a dream which has never been fulfilled, to win the World Cup."
France will get the opportunity to deny England a first Grand Slam since 2003 if Eddie Jones' side are able to beat Wales at Twickenham this weekend.
Looking ahead to the final round of fixtures, Betsen added: "I hope France will have the qualities and the character in order to challenge England. They are on the path of a grand slam.
"I hope we will have the courage and the audacity to make things difficult for them, to be capable to prevent them from winning a grand slam they wanted for the last 13 years.
"[France] must win against Scotland in order to maintain the suspense and to be able to ruin the tournament of the English.
"It will be a very difficult game for France [at Murrayfield]. Scotland was very efficient against Italy last weekend."