By Ian Ransom MELBOURNE, June 9 (Reuters) - A coaching career beckons for Tim Cahill when he hangs up his boots for the last time, but Australia's attacking midfielder would rather use his head to score goals than strategise from the sidelines for a few years yet. The 33-year-old, who plays club football for New York Red Bulls, is part of an ageing core of Socceroos players who will again be counted on to secure Australia a place in a third successive World Cup. ... More...