UPS hires "management pilots" for training positions and other various positions that their rank and file don't want (better let a Brown guy elaborate more on this).
It's not that UPS pilots don't want to volunteer for these positions - you are either a line pilot or a management pilot. Mgt pilots do not get seniority numbers. They cannot become line pilots w/o starting all over at the bottom of the list or even reinterviewing. Line pilots that become mgt pilots forfeit their seniority number. There is no going between the two lists. We do have union line pilots that work in the training center. They do sim training, and our IOE guys are line pilots. The mgt pilots do all the PC's, line checks, checkrides, etc. Understand that UPS's mgt structure is TOTALLY different from any other airline. Our mgt pilots are an "airline within an airline." Not very efficient if you ask me...