I think it's probably reasonable to measure delivery rates, to do things like fix delivery problems. The issue comes from treating it like something that can b

I think it's probably reasonable to measure delivery rates, to do things like fix delivery problems. The issue comes from treating it like something that can be continuously optimized. They should set a reasonable rate as a goal and be done with it, except for things like new processes that increase the rate without burdening the driver (new technology or better routing or whatever). People spending hundreds of dollars on Amazon are saving $0.50 on shipping, doing the deliveries doesn't have to suck, charge $0.50 more.