Rugby needs to tackle woes over new rules' head-on

Before the Six Nations started, there was concern for the outside halves of Europe. Would Jonathan Sexton be sound of mind after the multiple concussions of 2014 to direct Ireland's defence of their title? Would Dan Biggar and Finn Russell be able to carry the authority they showed in November into the championship where there are no secrets. Would George Ford be able to consolidate the position he had carved out for himself at the end of the autumn series?