In the past many great cricketers resigned from Captaincy taking the responsibility of their defeat in WC or other major tournament. Although all 11 players played with the captain.
So if Dravid is a gentleman he should resign from Captaincy taking the blame that he could not lead the team in right way.
In Srilanka Jaysurya, Attapatu resigned from the captaincy after the team defeated. In South Africa Shawn Pollock resigned after their team lost in last world cup. Many other gentleman of other teams resigned from the captaincy taking the responsibility of the defeat but continue playing for the team.
Dravid should also resign gracefully before he is sacked.