VRV Singh is very injury-prone, and a major fitness worry. He can't field too well, with the ball going for a boundary between his legs. He's missed most of this year's (or rather all of this year's) domestic matches. So far, Zaheer and Ishant are doing a good job and that's all you need. Unless VRV Singh is the next Dale Steyn or Shaun Tait, he's of no use.So what is stopping him? I'm still not convinced about his fitness. He's still lazy on the field, when he should be doing a lot better, being a young fast bowler. Fair, he's got some pace. Fair, he can get more with a change in action. However, the lack of effort on his part to make a difference is startling.
From this perspective, I don't know what value Atul Sharma will add, given that these two bowlers were in the team solely on the promise of pace, and neither fit the bill. If you expect him to be India's express pace bowler, think, is he capable of competing with Steyn and Tait? Only then can he make this team. The India cap has to be earned.