In the first place, we as a nation went wrong in trusting 11 overpaid, over-idolised, under-confident individuals in carrying the hopes and dreams of the nation!
If you look at Matthew Hayden, Ponting, Gibbs, etc.. batting you know what confidence in your self and your team is all about. This team of paper tigers had no self belief (anyway, how can paper tigers have self-belief?) as was evident in their body lanuage against Srilanka.
When a person like young blood like Yuvraj, whose position in the team is as of now secure, talks of pressure before the Srilanka match, we knew we had lost the match even before it had begun! These bunch of guys were not supposed to be under pressure but to put the other team under pressure. That is self-belief!
We do not lack talent, there is nothing wrong with the coach - once having fielded the team, it is for the 11 to perform. They didn't!