NWA sure as heck does treat XJ better than DAL treats Comair. AA seems to be trying to replicate NWA's success with the 9E spinoff, except I don't think that will happen b/c of the high-cost/senior labor group + the aging fleet AE has.
But doesn't XJ have the ground servicing/mx contract for 9E anyways? If that was the case, I don't see why there would be any cost savings having all the 900s on the XJ certificate. Or is it just gate/ramp service that XJ provides?