A major aspect of a point guard’s job is the same as a coach’s: Knowing the personnel. That not only requires passing the ball to the open man, but knowing when and where they like the ball, and what type of shots they’re comfortable taking.
That entails giving teammates passes that lead them to their spots. It also requires said player to know limitations, such as how hard of a pass a teammate can handle, if they can work off a bounce pass, and where they like the ball to be delivered for a catch-and-shoot situation.
The list could continue, but the responsibility of the point guard position is layered and filled with nuances that can’t be overlooked.