Saha definitely in, as many pundits claim that he is the best wicket-keeper in India at the moment. Plus, with him acting as a long term deputy to MSD, he ought to get the nod.
The second point about Dhawan being replaced is good. But then, who will open ? KL Rahul ? Poor chap seems under tremendous pressure especially after his first Test. Pujara is an option, but I don't want to move him when we do have another alternative in the form of Naman Ojha, who can open.
KL Rahul ,for whatever sins he may have committed ,deserves another chance. Although, if this feeling is not mutual, then Raina needs to come in. The benefit of Raina is the obvious fact that the batting line-up would look stronger in the absence of MSD. Raina also would lend the option of a handy off-spin bowler to the captain.
I hope this is the outcome for the New Year's Test & I seriously hope that the ill-fated 'Rohit Sharma' doesn't figure in the line-up. Yet another aspect with Captain Kohli could be that Ashwin might be rested in favour of Axar.