I don't think defeats came because right players didn't play. The best players played. But they were not good enough to take on South Africa at their backyard. Our players lacked right techniques and also focus.
Bring Dashing Player like Suryakant Jadav, drop the batsman Shreyas Iyer, whose body language is poor indicates at any time he shall go to pavilion. KLRahul to be little aggressive in his approach as captain and as a player. Kohli to perform or give way to juniors. Bhubaneswar Kumar, R Ashwin and Chahal need lot of rest. Bring Prasidh Krishna, Deepak Chahar or Jayant Jadhav in their place.Rahul Dravid should be an aggressive coach like Ravi Shashtri.