As a native of Northeast MS, they are a section of the state that has resisted consolidation. Falkner and Walnut merging into North Tippah has been a civil war and they are only 8 miles apart with very similar student bodies. I agree there is a lot of school consolidation that "should" take place but local boards often don't want to make the tough calls for political reasons.
Some of these small schools are due to being in separate districts and that's always been my bigger issue. Thrasher HS and Booneville HS are 5.5 miles apart but in different districts. Wheeler is 6 miles from Baldwyn but again, different districts. Hatley and Amory are about 5 miles apart as well but different districts. Unless district consolidation happens, there won't be any movement on those fronts.
That's just a small sample, but indicative of a larger issue.