Some confusion in the ODI-split proposal

Sachin Tendulkar recently proposed that the 50 overs that each team must play in an ODI cricket match be split into two 'innings' of 25 overs each.

There's some confusion here that must be cleared right away.

Let's say Tendulkar and Sehwag open India's innings and after the first 25 overs, India are 156/2 with Tendulkar batting 52, Dravid batting 12 and Sehwag out for a typically blistering 74.

The confusion then is: a. does Sehwag come out to bat again in the second innings or b. do Tendulkar and Dravid resume India's innings?

I understand the Tendulkar proposal to mean b. although I note that the International Cricket Council's Dave Richardson probably thought it was a. and so went on to lament the probable demise of centuries in ODI cricket.