West Indies trail India by 108 with only two wickets remaining after Ishant Sharma's devastating final-session burst.
Enoch Nkwe will take charge of South Africa in India with all-rounder Lance Klusener joining the Proteas staff as batting coach.
Keemo Paul will not be fit to feature for West Indies in the first Test against India, and Miguel Cummins has replaced the all-rounder.
The West Indies batsmen will be able to tap into the knowledge of Brian Lara and Ramnaresh Sarwan ahead of two Tests against India.
The BCCI has named Ravi Shastri as the India head coach, continuing in the role he has held for two years.
West Indies opener Chris Gayle said he will be around "until further notice" and has not quit ODI cricket.
Captain Virat Kohli's unbeaten hundred steered India to victory at Port of Spain after Chris Gayle rolled back the years in the final ODI.
Chris Gayle turned on the style in his likely ODI farewell by cracking a flurry of boundaries in an impressive half-century against India.
There are new faces in both the Test and Twenty20 International squads as South Africa start a fresh era with a tour of India.
Virat Kohli produced another masterclass on Chris Gayle's landmark day as India won the second of three ODIs against West Indies.