Coming to the performances, I feel Proteas lost wickets because they were completely shocked with the strokeplay of Indian batters and in that awe they lost their concentration which resulted into their wickets. AB Divilliers played good knock for visitors as he was the lone man fighting that battle by scoring century at more than run a ball.
I feel Sehwag take ODIs very casually as he thrown his wicket yesterday as well like he did in entire career that' s why he is having paltry average of 34 in ODIs which is far below compared to his test average of 52. I think Sehwag has to re-think on his approach to the batting in one-day cricket because if player like him stay on the wicket for 20 overs can take the game away from the opposition and moreover his strokeplay can dent any opposition's pysche which results into more wins for India in ODIs.
I feel after 2 losses Proteas will come hard at Indians in 3rd ODI at Ahmedabad because now they don't have anything to lose and its upto India to win series by clean sweep without getting complacent as it happens in the case of India more often.