I understand what you mean, but I do not think sub-boards are the way to go. Perhaps we could expand "Sports" into two categories? A category called "Professional Sports" and a category called "Collegiate Sports" could work? Then we could have "NBA," "NFL," "MLB," "NHL," and "MLS" in the Professional Sports, and "College Basketball," "College Baseball, "College Football," and "College Hockey" in the Collegiate Sports. I don't think we would be able to support this with the current activity state of this community, but at the same time, I don't think sub-boards would be very effective.