Anyone who thinks that problem with Congress is only due to people heading the party and not with the mindset, just see the behaviour of Himanta Biswa Sarma when he was with Congress and when he is in BJP and Sidhu before and after joining Congress.
When all mines will be auctioned, the revenue will be much more. It shows that the loss the nation suffered due to Coalgate scam of the UPA was not even 1.86 lakh crores, it was much more than that.