This month's series defeat to Australia aside, South Africa has been settled as the best test team in the world for two years. But the transfer of talent to the limited-overs formats has been tricky and South Africa has been nowhere near as successful in the short formats. Batsmen AB de Villiers and Hashim Amla and fast bowler Dale Steyn haven't been able to shine the way they do in tests, and South Africa isn't quite sure why.