I do not want to comment on whether non performers should be sent back or not but definitely would like to bring to attention that there should be change in the batting order. Kicking non performers out does not solve the purpose rather they should find out whats the reason behind it. Because there is no guarantee that new incoming player is going to score tons of runs for the team.
VVS Laxman need to be playing at position number 3 & Rahul at 4 follwed by Sachin, Ganguli, Singh or Kaif & so on.
Dravid should work as Wicketkeeper this way India can include all rounder or a bowler in the team like Yuvraj &/or Harbhajan Singh &/or Ramesh Powar etc. I do not mean to kick Dhoni out of the team but he should be kept as One Day specialist.
More importantly selectors should keep in mind that India is going to participate in World Cup in MAY2007 which is very close & new experiment will cause low performance in World Cup.
This is just what I feel as I am not cricket professional. Sorry if I hurt anybodys feelings.