I could care less whether they're union or not.

What they need to do is go get the book rates for:
Delta 737-200
Southwest 737-200
Northwest DC9-10/-30
AirTran B717
Frontier A318

average all of those ~100 seat payrates and come up with something that is realistic for a profitable, growing, major airline.

If Blue is as good a place as people say it is, then Dave will be open to a FAIR payscale for his new airplanes.