SYDNEY — The highlight reels at the World Cup have been running hot with batsman smashing balls all over cricket stadiums in Australia and New Zealand. Teams and individuals have been racking up record totals and the crowd have loved it, whooping and cheering every time another ball is dispatched into the stands. With the benefits of bigger bats and smaller boundaries, the world's best batsmen have been piling on the runs, hitting more than 450 sixes. In the previous 10 World Cups, no batsmen had ever made a double century and only once had a team cracked the magical 400-run barrier. But in 2015, two batsmen, Chris Gayle (215) and Martin Guptill (237 not out) have made double hundreds. And the 400-run barrier has been broken three times. But for the bowlers, the World Cup has been hard toil. Only one bowler, New Zealand paceman Trent Boult, has taken over 20 wickets in the tournament. At the 2007 World Cup, by comparison, four bowlers took over 20 wickets. The International Cricket Council (ICC) chief executive David Richardson said the sudden expansion of Twenty20, cricket's shortest and fastest-moving format, was clearly having a positive impact on other forms of the game. “I think the change in rules has helped, and the influence of T20 has impacted both ODIs and the way they play Test cricket, so the batsmen are far more attacking,” he said Thursday. “That's led to the captains, probably out of desperation, having to be more attacking to take wickets to try and keep the scoring in check.” But Richardson also admitted that the balance between bat and ball was shifting too much toward batsmen and the rules might have to be changed to give the bowlers more of a chance. He suggested that one possible rule change could be to allow teams to have five fielders in the outfield in last 10 overs, when batsmen typically score faster. Under the current rules, teams can only have a maximum of four fielders outside the circle. “In the old days you had one area you couldn't defend, now there's two and if a good batsmen is set as a bowler you've got very little prize (for the bowlers),” Richardson said. “One of the things we might look at is allowing an extra fielder out of the ring in the last 10 overs, remember we were worried about that middle period of the game that became boring where someone would score a run a ball 50 but no one remembering one shot. “We'll try and keep that and make sure we don't get back to that but maybe in the last 10 overs when people are not going to stop slogging or trying to hit boundaries just because one extra fielder is out. That might be a sensible change.” More teams unlikely ICC chief says the world governing body is unlikely to change its plans to reduce the number of teams at the next World Cup despite being impressed by the performances of the Associate nations during the current tournament. The next World Cup in 2019 will be contested by just 10 teams — four less than the 2015 edition — prompting complaints from the sport's developing teams they are being shut out from the sport's biggest spectacle. Richardson said the issue over the number of teams for the next World Cup was not set in stone and would be reviewed later this year but he did not expect any changes. “The decision has been made, as we stand it's a 10-team tournament at the next World Cup,” Richardson said Thursday. “We've also got the Cricket World Cup qualifier, which has been upgraded and been granted a higher status. Any decision to change the number of teams that qualify will have a knock-on effect for that qualifying tournament. “There are lots of commercial implications to consider. We also need to have a look at the attendances at all the Associate games, what were the viewing figures, and see where they really stand.” Although none of the associate-level nations reached the knock-out phase of the World Cup, they did record some wins against the traditional full member nations. Their supporters believe that reducing the number of teams at future World Cups will stall the global growth of the game but Richardson disagrees. “To me the debate should be more about what are we doing for Associate member cricket to enable them to qualify for a World Cup, whether it's an eight-team, 10-team, 12-team, 14 or 16-team. I think that's where we've made the most progress,” he said. “We want the World Cup to not just be window-dressing but a shop window for cricket at the highest level.” Richardson said the ICC still had ambitions of spreading the game to new frontiers, such as the United States, but their priority for now was consolidating their existing teams. “USA is a country that has enormous potential. It has more players playing cricket in the USA than Zimbabwe and I think very close to the number playing in New Zealand. “If UAE can qualify for the World Cup then there's no reason why USA shouldn't. So that's going to be a focus for us in the next few years,” he said. — Reuters