Team India's loss to South Africa in the first Test has reignited the debate on Gautam Gambhir's role as head coach in red-ball cricket. The defeat added to India's erratic Test form in the last few months, which suddenly brought back memories of how the team used to fare under its previous coaches. Though under Gambhir, India won the Champions Trophy this year, their record under him in Tests has been less inspiring, and that is now in sharp focus. India's red-ball form has slumped at a time when the team is already under pressure during the current overseas tour.With more tough series coming up, questions about Gambhir's ability to rebuild India's Test success are growing louder. India's Test Results Under Recent Coaches Ravi Shastri's Strong Run During Ravi Shastri's reign as the head coach, some of India's best Test results came. India played 46 Tests under him and won 28, giving him a win percentage of 60.87%, highest among recent coaches. His tenure included two historic Test series wins in Australia and a long stay as the No.1 Test team. India also fared well overseas and became known for fighting hard in difficult conditions. These results set high standards, which each coach thereafter has been measured against. Also Read | India’s Highest Successful Run Chases in Test Cricket: Top 5 List Steady Control of Rahul Dravid After Shastri, Rahul Dravid came and continued making India's Test team strong. In 24 Tests that India played under Dravid, the team won 14 and lost 7. A win percentage of 58% coupled with a good win–loss record showed stability. India won series at home, defeated Bangladesh away, and made it to the World Test Championship final. While India lost that final, the overall Test results for Dravid did give the team a steady base. Gautam Gambhir's Early Struggles as Test Coach When Gambhir came in as head coach, there were boundless expectations. His articulate cricketing ideas and big tournament win as head coach had people hoping he would infuse some boldness into Test cricket. So far, the results have been disappointing. In 18 Tests (excluding the results of IND vs SA 2nd Test) under Gambhir, India have won only 7, lost 9, and drawn 2. His win percentage of 38.89% is the lowest among India's recent Test coaches. The most shocking moment of his tenure was the 3-0 home defeat to New Zealand, which broke India's long unbeaten run at home. India also lost three matches in the Border-Gavaskar Trophy. Even though the England series ended 2-2, India failed to take control in key moments. Now, India is on the verge of losing the home Test series against South Africa and this will add more worries for coach Gambhir. The fans and critics are keenly waiting to see whether he leads India back to their resounding days of success in Test cricket or things will remain the same as in the recent past.