The great Clive LLoyd and World Series Cricket.Prior to WSC as Derek Murray said in an interview. The Windies provided the entertainment and the other sides won.
To take it further, prior to WSC, the West Indians were pretty loose. They toured as a team, but pretty much did their own thing. What WSC introduced to the West Indies was discipline. Kerry Packer demanded performance, so he appointed Dr Rudi Webster to manage the team, using hypnotherapy to get the players to believe in themselves. Then he appointed Dennis Waight as their fitness instructor, ensuring they attained unprecedented fitness levels and organised schedules to keep the pace men fit and fresh. It was the first time West Indian cricketers trained in track suits Waight remained in that role for many years.