According to Golf Monthly, Monty hinted at five nominees who could possibly lead the three-time defending champions in two years at Hazeltine.
Clarke is the likely favorite, and he has already received support from world No. 1 Rory McIlroy and Westwood.
Harrington already withdrew his name from consideration and will likely be one of the favorite to captain in 2018, along with Bjorn.
Westwood will no doubt be a captain in the future, and he will also likely be an assistant in 2016 if he doesn't make the team.
Jimenez, who has already been an assistant captain, would be wildly popular captain, but it would be hard to give him the nod after two of Europe's most prominent players have thrown their support behind Clarke.