England head Stuart Lancaster calls up Toni Minichiello and Andrew Strauss to give advice to squad Lancaster also disclosed that London Irish prop Alex Corbisiero underwent a scope procedure on Wednesday to clean out a "loose body" in his troublesome knee and will miss at least the opening two rounds of the championship. Exeter flanker Tom Johnson, was a confirmed as an absentee for three months. Coping with the loss of injured players is the meat and drink of a coach's weekly diet. Ensuring that the mindset of his elite athletes is fine-tuned to the right wavelength is an altogether trickier thing. Lancaster has used guest speakers, from Gary Neville to Bradley Wiggins, several times over the past year to help stimulate or inform. The England head coach is adamant that there are no issues within camp, be it complacency or nervousness about meeting the enhanced levels of expectation, but he is aware that the mood in the country has changed. "We're a pretty grounded group and no one is getting too far ahead of themselves," said Lancaster. Externally it's different. People are suggesting all sorts of things and I've got to manage that. That's the reality of being an England team and that's the reality of the Six Nations. We've got to make sure we keep our eye on the ball and are not distracted by that. There is a slip side to the notion of humility and that is the energising power of self-belief, one that can be fuelled by the support of a home crowd. As Lancaster himself acknowledged on Wednesday, it is imperative that England deliver success. "Our aim is to be a top-two side in the world by 2014 and if we want to be that side then we've got to be able to win games consistently," said Lancaster. That's what we're striving for. We know that we've still got a huge amount of improving to do. The reality for us now is that we've got to back up that performance against the All Blacks. Everything rises and falls on each game. What has happened in the past doesn't define what happens in the future. It's a reference point. That's all. It's a results-based business and the contrast in the reaction between our loss against South Africa and our victory over New Zealand a week later was unbelievable. England are based in Leeds all week. They have kept pitches clear and have trained every day, 20 players being fit to take part on Tuesday, 30 on Wednesday. They will host an open training session at Headingley on Friday with 6,000 expected as England reconnect with their public. Only Alex Goode, is likely to feature in the weekend's LV games, the Saracens full-back getting his first outing in seven weeks since damaging a shoulder. Tuilagi's problem will become pressing if he does not recover by the start of next week. "We don't need to push him to get it right at this stage but if he's not available then there are decisions to be made and it becomes an interesting selection," said Lancaster. Jonathan Joseph is one option but he's not played centre for London Irish in the last two games and that has a bearing. Billy Twelvetrees is in the squad while Toby Flood has played 12 as has Owen [Farrell]. Owen was exceptional against the All Blacks [at fly-half] and has been exceptional since. The knee injury to Gloucester fly-half Freddie Burns is not as bad as first feared but he is likely to sidelined for two to three weeks.