Shakib should be nurtured, he could be one of the best all rounders in the world in the future. With 11 wickets @ 20 is the best spinner in a series in South Africa since 2000. Pipping the likes of Shane Warne and Muttiah Muralitharan. You also have to take into consideration that Shakib has bowled to the toughest SA side ever.
Today Shakib got his 4th career 5-fer against test class opposition, and all the in span of 2 months.