Was Shreesant responsible for India's loss against Australia?

In the nagpur ODI of India vs. Australia, Shreesanth conceded 64 runs in 8 overs. Conceding 8 runs an over is too costly in one day cricket. India lost by 18 runs, but if Shreesanth was even to concede just around 6 runs an over, India could have won. Actually even 6 runs per over for bowler is expensive in ODI but Shreesanth is going even beyond 7.5 to 8 runs an over. What is wrong with shreesanth's bowling? What is your opinion on, if shreesanth was responsible for the loss? He has proven to be an expensive bowler throughout the series.