These statements seem contradictory to me:

> I'd rather have a happy safe driver than a miserable one at the end of his or her rope

> Amazon’s entire value to me is fast delivery

My understanding is that the pace/quantity of deliveries is what makes the drivers miserable so if you want the drivers to be happier and not stressed then relaxing the delivery standards would have the most impact.

Do we really need most of the stuff sold on Amazon delivered in 2 days or less (or even at all)?