The employees in DEN had been trying to unionize themselves, so management responded by simply axing them all. The sad thing about it is that the company which they're outsourcing too, and who is now hiring for the same positions, isn't paying much less starting out vs the low wages Frontier was already paying their long time loyal employees. I honestly don't see much financial gain here, even in the best case scenario. But the negative impact will almost certainly be felt within the operation. But that also fits right in line with all the other decisions Frontier has been making lately. They used to be a decent airline, but now are leading the way to the bottom.