Sehwag can never get back in the runs even in his new-found comfort zone, can he? Tough luck. There's a better option in Nayar, who's been bowling a lot more. He's hit 100 first-class wickets in this game, but I feel this bloke isn't really taking his bowling as seriously as, say, Rajat Bhatia or LR Shukla. Shukla, in particular, puts in a lot more effort, hitting the deck and getting some bounce, while Bhatia, at the very least, moves the ball a lot. Nayar isn't doing as much- we read how he got a wicket by frustrating one batsman with a stream of wide deliveries, and getting an edge.
The bloke's definitely in some crazy form over the last season, and decent form in the season before, and would be an ideal fit in an Indian six/seven, but since the bowling resources are not so strong, a better bowler would be preferred. In seaming conditions, he's a better choice, than on flat wickets.