Hall County Schools have seen a lot more students over the past five years, but a lot fewer teachers. The district hired 18 to 20 new teachers this year, but has about 218 fewer certified staff members than in 2008 — a 10 percent drop — thanks to layoffs and attrition that occurred at the beginning of the economic downturn. Meanwhile, enrollment has increased consistently, and is up 1,652 since 2008.