Who do you think is responsible for todays defeat of India

What i feel is the wicket of dinesh karthik plays a partial role in the defeat of indian cricket team. For me india lost because of sehwag. After being the vice captain,captain and playing so many matches for india this guy just seems like have not learn anything. The new players are showing more character. He is just so stubborn. We already scored 8 runs in te over sehwag got out and still despite knowing the conditiuon of team he kept on playing his game. Dhoni is better hitter thanhim then what made him play his unnatural game. One has to learn from his experiences but this sewhag sems like he knows that whatever he does he is going to be a part of the team.Thanks to the selectors...