Vasu was right about Spirit
Vasu had a presentation at a crew news about Spirit, when they were growing like wildfire. I admit I was concerned for our future, they looked like they were gunning after us in a big way with expansion of flights in our fortress hubs especially DFW.
Anyway, he stated we can choke them off, and every single flight add in a hub really added dozens/hundreds of new destinations and by extension customers. The money wasn't in flying people from A->B, it was flying people from A to B, C, D, E F, & G.
In light of today's news, I just found that interesting. I never liked him as a person (came off way to cocky) but looking back, he's been right about a lot of things, maybe just a tad early in execution.