Fabien Galthie flexed Les Bleus’ depth as his charges ran in three tries to Argentina’s one, as Felipe Contepomi’s tenure as head coach of the Pumas started with a disappointing defeat.Tries from captain Baptiste Serin and debutants Antoine Frisch and Theo Attisogbe saw France to a convincing victory, with Antoine Hastoy adding 10 points from the tee – and Melvyn Jaminet kicking a penalty.For Los Pumas, skipper Julian Montoya and centre Matias Orlando scored their tries in what was an ill-disciplined performance.French boss Galthie named six uncapped players in his starting XV, but a late…