I'm sure all of you know this already.So, it's 8:50AM. I've got a 100-piece bulk stop that was not going to fit on one of the trucks, piled up on both sides of my slide (typical Tuesday). Another bulk stop for another truck piled up next to it. I'm trying to finish bulking out this last truck, a 1300 I think. My driver is bitching (not at me) because he has to get the hell out of there. He's got about 20 or so NDA stops. To add to it, a safety auditor approaches me and attempts to interview. The preload manager quickly shoos him away, and I proceed. Now there is some other manager standing around getting in the way. After a couple of minutes, this manager (whoever he is) advises me to leave. He says (in his own words) that the driver, other drivers, and/or sups will finish the truck. My driver tells him that there are hourlies who can finish the work. Of course, nobody cares. So I leave. I'm not particularly eager to stick around for this nonsense.This could have been prevented if they had brought me another truck for that 100-piece bulk stop (which they typically do). Space is a necessity. I need room to sort out whatever I can't load until the end. Without that space, it takes me far too long to sort out the order of things that will be center loaded. It also could have been prevented if they took a specific stop off of that 1300 on days when it exceeded a certain piece count.After so many years that UPS has been in business, how is it possible to not figure this out? This efficiency garbage is absolute nonsense. There is no efficiency. Why do my forecast sheets show 6 pieces for a specific stop when I actually end up with 30? It just doesn't make sense to me. Do they really not know what's coming before it comes? Computers do all of this work for you... friggin' use them.In the end, I don't really care. It just baffles me.