This isn't a Mesa thread. I'm just stating that in today's industry why would I want to be at a regional for 10 years before I see the left seat. Mesa might not be around in 10 years and God only knows if I will too.
If your "Dream Job" is slinging gear for AA then get on the party bus at Envoy and ride it for 12 years or more. And, maybe in 20 years from today you'll upgrade into a 319 and that's if that flow is still working for you. Good luck.