After Jadhav asks why he is not selected for the remaining ODI's vs West Indies, he is now included in the 4th and 5th ODI.
I'm quite sure the selection was not because KJ "asked" why was he not selected for the ODIs, but has got more to do with back up, with the kind of stability he offers. With Kohli, MSD not in picture, the team should have someone who offers both stability and agility, and I see no other player apart from KJ who can do that. While he can't switch between gears like how Kohli does, but he is the best one available.
Murali Vijay, who questioned the communication between selectors and himself, is now back for the Australia test series. Mayank Agarwal was picked in the test squad and without even getting a game, he is dropped and Vijay is brought back in. Ganguly says Rohit needs to be back in tests and Rohit is selected for Australia tests, even though Rohit has clearly shown that he is not cut out for test cricket.
Mayank Agarwal was selected when circumstances were different and currently the team circumstances are different. We had Dhawan in the XI, and Dinesh Karthik, although was recalled, was at prime form.
But now, we only have Pujara, Kohli, Jinx, who are the experienced guys. Prithvi is a sure feature, inexperienced person, and it would be too daring to go with Prithvi and KLR in overseas conditions. So the obvious choice is to go with someone experienced, and with Gautam Gambhir, sadly, not being anywhere in the selection radar, the obvious choice is MVJ.
Similarly, at #6, we are playing Vihari, which again is a gamble considering that he never played cricket in Australia. Say if he fails, there should be someone who should have enough theoretical knowledge on how could they build the innings with the experience they had in the past, and if you look at the players we have, hands down it is Rohit Sharma, who is most experienced in Australia, in a different format though.
Again, if you listen to MSKP's words, he clearly mentions "Rohit is a back up," which clearly means he would be in action only if things go horribly wrong.