I have a couple of friends that work there and I can tell you that there are some grumblings. (albeit quiet ones for now) Some are pissed about losing the flying (and of course the layovers) and others are upset that they have delayed taking delivery of 737's along with any possible upgrades and are now wet leasing another A/C to do their flying.
WJ does a very good job at keeping these kind of concerns out of the public eye but they are still there.....