If you replace all of them at one go, you create a huge void in the middle order. I do not think the Rohits, the Dhonis, the Rainas and the Badarinaths are ready. They have to to given time and given time with legends.
There are two types geniuses. One is Rahul Dravid (who has work at it day in and day out) and other is Sachin Tendular (who is a born genius)
What we should remember is both of them became legends because they played with greats such as Kapil Dev. You need legends in the team to breed youngsters.
