Could you explain the mechanics or the missing nexus between having excellent ball control and being a good dribbler. In other words, why is it that keeping the ball close to your feet makes you so much better?
Having exellent ball control helps you dribble better because of the loation on the ball in relation to your center of gravity. When a mediocre dribbled is dribbling, his/ her body is sprinting while the brain is pushing the ball a certain distance in front of him/her in order to reach it precisely before the next stride.
Players like Messi seen to have the relation between their center of gravity and the ball so perfect, that their brain no longer thinks , "Now I kick the ball, Now I step with my left foot, etc..." , but rather ,"I will run and the ball will alway be in my control, I won't have to look at it to know where it is".
The center of gravity plays a role because Messi is shorter thereby making his steps more frequent. Also , Messi is always balanced even when getting challenged or tackled.
Furthermore, when you keep the ball near you, it becomes an "extension" of you. It sounds corny but if you watch Ronaldinho or Messi, they don't seem to concern themselves with the location of the ball but rather have time to focus on the next pass or a move to beat the next defender
Some smaller roles that excellent ball control provide are confidence and even a little arrogance. When you are that good at ball control, you can show off a bit and also have the mental strength to screw up completely.
I hope this helped.