Since December, 2013, India have lost series in South Africa, New Zealand and also failed to reach the final of Asia Cup in Bangladesh.
Writing in "The Times of India", Gavaskar said Team India should appoint a "younger coach" to arrest the freefall.
"It (Indian cricket) seems to be in a freefall that looks tough to arrest," Gavaskar wrote.
"What Indian cricket needs right now is a younger coach who will want to be out working with the team and not looking to put his feet up at the slightest chance. A young coach will galvanise the players and give them a fresh direction and energy. Look how Australia have turned it around in a few months by getting a younger man as coach," he added.
Recently, Gavaskar had blasted the team management for not playing Cheteshwar Pujara and Ishwar Pandey in the inconsequential Asia Cup match against Afghanistan in Mirpur.