Does India's debacle in South Africa signify the end of an era?

Besides deciphering the reason behind India's sorry tale in the Test series in South Africa, we try and evaluate whether it's time to move on from some of the old warhorses who were at the centre of India's memorable Test ride under Virat Kohli's captaincy. And yes, how can we not discuss Rahul Dravid's possible impact as the head coach so far!