QBE Internationals: Lee Dickson gets the nod to start against Australia at Twickenham Furthermore, the 28-year-old's place in his own club side appeared to be under threat following the summer signing of Samoan international Kahn Fotuali'i, widely regarded as one of the best scrum-halves in the world game. However, Dickson, who started both of England's Test wins against Argentina in June, has responded in impressive fashion, producing arguably the best form of his career. With Dickson having fallen behind Youngs and Harlequins scrum-half Danny Care in the international pecking order last season after starting the last of England's three Six Nations matches in 2012, the competition with Fotuali'i has brought a new running dimension to the Northampton man's game as well as a cooler head under pressure. An impressive display against Youngs in the draw with Leicester at Welford Road clearly helped his cause and, while he continued that form into the Heineken Cup, Youngs endured a frustrating night in his side's poor display in their victory against Treviso. Fotuali'i is in no doubt that Dickson has earned another England start. "Lee is a credit to himself and has put in the hard work," Fotuali'i told the BBC last week. Training-wise he is out there doing the extras - passing, kicking. We both do the same and feed off each other. We learn off each other. Well, I learn off him and hopefully he learns from me. I would pick him as England's first number nine at the moment the way he's playing. Dickson also recently praised Fotuali'i"s for his resurgence in form. "Kahn coming here has helped my game massively," Dickson said. Elsewhere injuries have ensured that the remainder of the side will be as widely predicted. Much as Parling's loss is unfortunate England assistant coach Graham Rowntree acknowledged that the resources at lock are deep. We have got some tight calls to make in the second-row. Alex Corbisiero's knee injury means that Mako Vunipola, who struggled against Australia's scrum in the second Test for the Lions, will be picked at loosehead prop, and is expected to feature alongside his brother, Billy, another whose performances for Saracens have been eye-catching this season. "Mako has matured while we think that Billy is ready," Rowntree said. The absence of Brad Barritt and Manu Tuilagi also forces Lancaster to try a fresh midfield combination of Billy Twelvetrees, who cut an impressive figure on the Argentina tour, and debutant Tomkins. Tomkins had been due to tour Argentina as well but sustained an ankle injury. The former Wigan and England rugby league player has been one of Saracens" standout players this season, however, and is seen as a genuine alternative at outside centre to Tuilagi. Lancaster will be hoping that Tomkins and Yarde, another of the new generation that made an impression in Argentina, not only make a convincing transition to the big stage but also bring a freshness and cutting edge to his backline. Australia are in a period of transition under new head coach Ewen McKenzie but showed in their narrow defeat by the All Blacks that their attacking game appears to be regaining its ruthlessness. Rowntree has no doubt that this is a seminal period for this generation. "It's production time," the England forwards coach said on Wednesday. Meanwhile, Harlequins centre Alex Lowe, who featured in the England squad that toured South Africa last year, has been ruled out for the rest of the season with a neck injury he sustained during the 22-12 defeat against Saracens at The Stoop on Sept 28 while making a tackle early in the first half.