The Five: Will Scottie Scheffler challenge Rory McIlroy? Post-Masters storylines to follow

Scottie Scheffler

Will transition out of CEO role later this summer; remain executive chairman

Rory McIlroy, Shane Lowry set to defend title at TPC Louisiana

Trial initiative could see broader adoption across PGA TOUR-sanctioned competition

This year's event begins Thursday at Corales Golf Course in Punta Cana, Dominican Republic.