National Cricket team's coach Geoff Lawson has suddenly left for Australia on Tuesday. Sources say that his differences with PCB's selection committee over selection of national squad for the Champions Trophy is main reason for his departure to Australia. Coach Lawson established some difference with selection committee over few players after which he took the decision to leave for Australia, sources said. About differences over selection matter, Naghmi said he might have difference of opinion with the selection committee but this is not the reason behind his Australian visit.