THIRUVANANTHAPURAM: New Zealand mean business. For the second warm-up game in succession, the runners-up of the last ODI World Cup posted a score in excess of 300 against South Africa at the Greenfield stadium on Monday. Half-centuries from Devon Conway, Tom Latham helped New Zealand score 321/6 in 50 overs. That proved to be enough as they prevailed over South Africa by 7 runs under the Duckworth-Lewis method as rain halted play midway through the Proteas innings.The match was nicely poised and South Africa were 211/4 in 37...