My first reaction was to say I hope you didn't think they should be in the small 2A bracket but just typing that and leaving it might not go over too well.....But I smell what you're stepping in...a question a lot of folks have been asking. I guess I just keep assuming that everybody knows that North Davidson has been a 4A school for many many years and that a new school opened up in the county, that in a couple of years, will drop their enrollment to a level closer to most other 2A schools. Anyway, the realignment for conferences and classifications are done in four year cycles, with the new ones finalized well ahead of time; Fall 2017 is the first year of this cycle, but it was set in stone back in the Spring of 2016 I believe, so remember, the classification you go in (1A, 2A, 3A, 4A), which determines the conference you go in is based on your projected enrollment for two years later.
When the realignment process went into motion, Davidson County knew they were opening Oak Grove High School in the Fall of 2017, and that it would pull students away from North Davidson and Ledford's current freshman and sophomore classes. With that in mind, the projected enrollment they (North Davidson & Ledford) sent the state (not sure if it's projection for 2018-19 or 2019-20 or the four year average from 2017-18 to 2020-21) were just under the cutline between 3A & 2A. It doesn't matter that North Davidson has been 4A for as long as I can remember and that Ledford has been 3A for quite some time, because when the realignment was finalized, and both of those schools will be 2A through the 2020-21 school year (barring some kind of strange change)...It does feel unfair that they are playing varsity sports in a 2A league and playoffs with essentially a 4A junior and senior class....but the state typically doesn't change a team in the middle of a realignment cycle; they knew that North Davidson & Ledford would have 2A numbers by the third year of these conferences and went on and put them in 2A...Now would they have done that if they knew that North Davidson would have 1300 this year? I don't know; they may have known, but I can't help but wonder how many of their 10th graders probably "should" be at Oak Grove but didn't want to leave, and found a way to stay....
If I heard correctly, Oak Grove did open this year with only 9th & 10th grade, playing only JV opponents, and an ADM of 492....I believe they will begin playing varsity opponents next year, when they will have 9th, 10th, and 11th graders, and presume their ADM will be more like 700-800, while North Davidson & Ledford's ADM will probably drop by approximately 75-125 each, for each of the next two years
By the way, ADM is not "Admin" but Average Daily Membership, which is essentially enrollment of students in a school