Compass messed up their staffing. They lost 6 airplanes earlier this year and stopped upgrade classes and new hire classes. Now they are hiring and upgrading again but have had trouble getting more than 3 people to show up to a new hire class and lots of prospective new hires have been spooked. They upgraded captains. They are short on captains but even more short on FO's. They now have a new hire bonus (which is being contested by the union by the way), so the next two classes apparently have plenty of new hires but it will be a while before they are on the line.