Server faults, unable to log on, late rosters, blank rosters
Server faults - crap hardware? who's fault is that?
Unable to log on - because of hardware failure? your PC's not up to the job? network breakdown?
Late rosters - Are you honestly saying the system sends out the roster late because that is the way it is? Does this not have anything to do with whoever is looking after the system?
Blank rosters? - Again, if 150 airlines are doing fine, chances are something wrong with your configuration.
All in all, the point I would like to make is that for the 'end-product' to work successfully, a whole suite of pre-reqs need to be met. I think this is a training issue or your IT dept is not up to it's job.