Zion Williamson is receiving most of the attention ahead of the 2019 NBA Draft, but there are plenty of players who could make their mark early. Here are four instant-impact picks in the 2019 NBA Draft, with the New Orleans Pelicans poised to select first on June 20. Williamson has LeBron James' athleticism and a work ethic that might (maybe) even exceed the Los Angeles Lakers superstar.