It's tough to find good workers to do this kind of a job in 2007. America has become a fat, lazy, and overeducated society. Who comes out of highschool these days and wants to handcart 60 boxes of hammermill paper? Very few, because it's being programmed that white-collar office jobs are the only career path. At UPS's conception, blue-collar was the only collar, now it's frowned upon in our culture. UPS will continue to give slack to appearance standards because UPS has different priorities than they did in 1907.
UPS today is a corporate goliath, bigger than life itself, it's much harder to run the "tightest ship" in the shipping industry.