Not every sprinter is going to develop into Usain Bolt either, it doesn't mean that coaching won't help them improve. Ofcourse there is a genetic element, but as I say whenever people bring genetics up, do what you can with what you have.
Poor Khan was born chinny and while fast with good skills doesn't really have the pop. Hunter is doing the best he can with what he has. A chinny guy with no real pop.
Reason why He cant take a Shot, is His Head is above His front Knee, and His Feet are too Wide. Restricting movement of Feet, without the support naturally of the Groin and Glutes, the orchestra has stopped playing. .