Because “transformation” like this only meets its ROI nut if you adopt the religion in full.
This is all about eliminating a few hundred man-hours a week. Instead of having 2-3 guys unloading trucks and staging inventory, the whole staff is engaged, and is wasting a lot of time unless the trucks are loaded perfectly.
It’s insane. Instead of the fish or cheese guy selling me high margin product, he’s hunting for cartons. When I worked at a computer store in college, they did something similar, and same store weekday sales of premium products (which drove profitabilty) dropped 25%. But they saved 160 man hours of labor, or about $1,600, which was much less than the lost sales.