When the first pick of the 2014 NBA draft is announced, it’ll be the 30th time in the lottery era that a team has taken a chance on someone through the magic of ping pong balls. It makes for a good chance to review which number one picks have done a great service through their NBA careers, from the likes of Patrick Ewing, David Robinson, Shaquille O’Neal and LeBron James, to others who have been less successful like Pervis Ellison, Michael Olowokandi and Anthony Bennett.