First and foremost, stop the stupid media hipe to the present day Cricketers. After that superlative debut series what has Dhoni done to Team India. Suddenly overnight he became cororpati from nowhere. Now what is his problem. whether he performs or not doesnot make any difference for him. Similarly there are many in the Indian Team.
What is Sehwag doing in the Team? No doubt Sachin is Great Player. But only for self. Not for the Team or Country. His prime days are over. Both of them can be shown the doors. Robin Uthappa didnot get the due support and sufficient chance. Just like that he was dumped. Bring him back.
Regarding Coach - there are lot better Coaches among our Indian Players of yester years. Why you want to deppend on others. Given the proper chance - we have definately better Coaches than Greg - like - Sandip Patil, Mohinder Amernath, (Great) Kapil Paji etc.