Nehra should continue in the side. He has done nothing wrong. Zaheer and Nehra would be a nice combination to be back. Nehra can attack really well while Zaheer bottles one end up. I would bring back Sreesanth or try one of Sudeep Tyagi or Dhawal Kulkarni to see how they go. Praveen could be retained but some new fast bowler should be tried and should be given the chances.
For me, it doesnt hurt much because even before we were eliminated, the tournament favorites South Africa and another heavyweight Sri Lanka (who were expected to go far after that first game) were eliminated. That makes me feel better! I expect our team to do well against Australia at home and try to get the rankings back in order (if Australia go to the final, they will take over the No.1 ranking I guess with SA and India behind them).