Christo BuchnerJohannesburg – The lack of big hitters towards the end of the innings and bowlers that can stem the run flow have been identified by Jacques Kallis as the South African cricket team’s problems.WIN: A Blackberry Curve 8520Even though Graeme Smith’s side beat the West Indies by 17 runs in the second one-day clash on Monday, there are still a number of areas of concern.The batting and bowling towards the end of an innings is a worry. South Africa posted 300/5 and the West Indies got to 283 in 48.1 overs thanks to an unbeaten 58 by Darren Sammy.Hashim Amla (92) again pointed the way in the South African innings. Kallis, who broke Shaun Pollock’s record for the most one-day games for South Africa to reach 295 one-day games, struck 85 runs.It never looked as if the West Indies would come close to the total, but Sammy’s onslaught at the end made it look a lot closer than it really was.He set the West Indies record for the fastest ODI half-century, achieving it off just 20 deliveries.In the end he faced only 24 deliveries and struck two fours and six sixes.South Africa’s bowling figures suffered as a result. Morné Morkel took three wickets, but it cost him 58 runs.“We’ll definitely have to pay attention to our bowling at the end of the innings,” admitted Kallis.“It’s as if the bowlers are caught between two lengths. But it’s something they’ll have to sort out themselves.”Kallis also believes the lack of big hitters towards the end of the innings is a problem now that neither Albie Morkel nor Mark Boucher is in the side.“We’re not using the final overs as well as we’re used to doing.”South Africa are leading the series of five games 2-0, with the next two in Dominica on Friday and Sunday.