Really, this isn't just an issue with gifted kids. D20, who has many talents but is only slightly above average in intelligence, also meandered all over the soccer field at age 6. She and a friend were on the team together, and the coach had to move them to different shifts on the field because they wouldn't stop holding hands while running down the field. I don't think her foot actually touched the ball for the whole two seasons she was on the soccer team. But she went on to be captain of the high school volleyball team (small school, not very sports focused, but still...). So there is hope, you just might need to try different sports. It helped that D20 was quite tall, so your son's body type may give you some ideas regarding what sports you might want to encourage.