Trinidad and Tobago, May 30: West Indies mystery spinner Sunil Narine's Trinidad and Tobago coach Kelvin Williams feels the off spinner has to add more variations to his bowling in order to sustain for more years unlike Sri Lankan offspinner Ajantha Mendis.
"He has got to develop variations," Williams told Trinidad and Tobago Newsday.
"In international cricket batsmen will work you out so you can fade away if you don't do that and that is what happened to Mendis. Narine is too smart for that to happen to him, though, but the first two years of his career will be a dream start."
Mendis too has a sensational start to his cricketing career, as he took 26 wickets against India in 2008 but failed to live up to the expectations later, as he is not a permanent member of the Sri Lankan squad.
Narine, the mystery spinner did play a vital role in Kolkata Knight Riders' maiden IPL win, as he claimed 24 wickets off 15 matches with an economy rate of 5.47 and the best being 5/19 in IPL 5 which also earned him the Man of the series award.
"It's nice to see him doing so well," Williams said.
"He is one who has been dedicated towards the development of his cricket. He always had my utmost respect because he was so determined to get to the top. He works extremely hard and is always trying to develop new things."
Kevin also said the offspinner has proved his mettle in the shortest version and the limited overs format of the game while the next would be Test cricket.
"He has proved himself in all the other versions of the game and the next step is Tests. I think he will do well because he is so difficult to read," Williams said.
The coach also felt he should be given some time, and said the team management should not rush him to play the on-going Test series.
"I don't think he should be rushed in. He will be up there for the ODI series (which starts on June 16) and I think he has made himself unavailable for the Tests. He should be in the Test team against New Zealand."