By Ian Ransom MELBOURNE (Officialsportsbetting.com) – Professional golf has long consisted of 72-hole tournaments played over four days – something that will have to change if the game wants to reach a new generation of fans, the head of the European Tour said. The tour’s chief executive, Keith Pelley, has pledged to shake up the European circuit since taking over from George O’Grady in 2015, and a couple of innovative tournaments this year are part of that effort.