Durham Tees Valley has been underperforming for some years, mainly due to bad management which in turn is due to poor wages - you pay peanuts you get monkey's.
Not only is management underpaid, but more or less the entire airport is, hence why we have a severe lack of Radar Controllers in the tower.
Something like 25 years ago, we had 1 more scheduled route than NCL. With the right guidance back then, we could have been bigger than they are now, but unfortunately that guidance never materialised and isn't likely to anytime soon either...