South Africa have switched from a pace-centric line-up to a spin-dominated attack this World Cup when they take on a New Zealand in the quarterfinals in Mirpur on Friday.The Proteas' purposeful shift from pace to spin has worked wonders for them despite having fast bowlers in Dale Steyn and Morne Morkel in their ranks. Smith has chosen to give the new ball to off-spinner Johan Botha or left-arm spinner Robin Peterson often during the league stage.And the move seemed to have paid rich dividends, as Peterson has taken 14 wickets so far, while leg-spinner Imran Tahir has chipped in with 12.Skipper Graeme Smith admitted that even the spinners are excited to be playing on these tracks as they can utilise their talent at Mirpur in Bangladesh.