What player is the future of the NBA out of the following?

O.J Mayo, why do u have granger and harris in there. There well older then the rest of the guys, by atleast 2 or 3 years. mAyo because i think he was nba ready back in college. When you look at him you see NBA, and it looks like hes been playing in the league for a few years now. i dont know about you guys though.