its all about new technoligy nowdays.
And Im sick of the All Blacks losing the world cup so lets hope they can develop tactics that can overcome them being predictable, them being the most studied team by way of video

If the team was arranged so the first five eight and the second five eight could change positions at any time to impliment a change of tactics to catch the opposition unawares and decrease the chances being predictable and reduce the chance of injury to key players

So if you had the likes of Dan Carter at first five and trained up a rugged loose forward to play second five most times or when required he could step into Dan Carters place and deliver bone crunching tackles to the opposing first five

and on occasion our adapted forward could run forward and into the forwards and in all this type of ploy be like you firt five has a bodyguard