Here's one part that concerns me:

"Spirit has likewise been under fire for its 30%+ growth rate and its shares suffered during the year, resulting in a recent announcement that it would slow growth to the 20% region, according to Cowen Securities analyst Helene Becker. Becker said in a research note she sees room for further growth cuts if Spirit were to defer aircraft deliveries or return leased aircraft. She expects the management shakeup signals a more conservative growth strategy."

One of the positives of this place is the quick chance to upgrade. If this article is correct, they will slow down. We really need a TA with more competitive F/O scales to keep people from leaving.