I worked at an Amazon air-shipping warehouse for a couple years, and hearing this confirms my suspicions about the management there. Lower management (supervisors, people actually in the building) were very aware of problems, but the people who ran the building lived out of state, so they only actually went to the building on very rare occasions.
Equipment was constantly breaking down, in ways that ranged from inconvenient to potentially dangerous. Seemingly basic design decisions, like the shape of chutes, were screwed up in mind-boggling ways (they put a right-angle corner partway down each chute, which caused packages to get stuck in the chutes constantly). We were short on equipment almost every day; things like poles to help us un-jam packages were in short supply, even though we could move hundreds of thousands of packages a day. On top of all this, the facility opened with half its sorting equipment, and despite promises that we'd be able to add the rest of the equipment in the summer, during Amazon's slow season...it took them two years to even get started.
And all the while, they demanded ever-increasing package quotas. At first, 120,000 packages/day was enough to raise eyebrows--we broke records on a daily basis in our first holiday rush--but then, they started wanting 200,000, then 400,000. Eventually it came out that the building wouldn't even be breaking even until it hit something like 500,000.
As we scaled up, things got even worse. None of the improvements that workers suggested to management were used, to my knowledge, even simple things like adding an indicator light to freight elevators.
Meanwhile, it eventually became clear that there wasn't enough space to store cargo containers in the building. 737s and the like store packages mostly in these giant curved cargo containers, and we needed them to be locked in place while working around/in them...except that, surprise, the people planning the building hadn't planned any holding areas for containers that weren't in use! We ended up sticking them in the middle of the work area.
Which pissed off the upper management when they visited. Their decision? Stop doing it. Are we getting more storage space for the cans? No. Are we getting more workers on the airplane ramp so we can put these cans outside faster? No. But we're not allowed to store those cans in the middle of the work area anymore, even if there aren't any open stations with working locks. Oh, by the way, the locking mechanisms that hold the cans in place started to break down, and to my knowledge they never actually fixed any of the locks. (A guy from their safety team claims they've fixed like 80 or 90 of the stations since the building opened, but none of the broken locks I've seen were fixed in the 2 years I worked there.)