The best teams are "the best" for two reasons: 1) They recruit from other teams making their team better and the other team worse 2) They get holdbacks - best way to be bigger, stronger, faster.
Coaching is of little importance at this age.
As the Dukes proved, just pull together some great kids and with no practices and they can beat the best regular season team easily.
At this age great skilled athletic players beats any well coached team of good players.
