If you did get a start at Skywest it would be on the Fokker 50, just cos that's the the way it's supposed to work - start at the bottom no matter what your previous experience. OK job if you don't suffer motion sickness.
Then after everyone else ahead of you, you could get to the Fokker 100 and if it ever happens, maybe eventually the A320. As for the east coast, unlikely that Skywest could get up against Virgin and Jetstar. What they are doing in the west is probably good enough for their investors right now.