I liked this idea. Juggling the different packages and pick/drop order was a fun optimization problem.
The interface made that gameplay cumbersome and frustrating: looking at a courier required clicking their packages tab and their profile tab, no view of all courier + new packages at once. Not sure if that’s part of the challenge. I liked the imprecise location of the couriers as an intentional awkwardness, but I think you want other things to be streamlined.
I only played enough to realize why wisdom matters and then my week ended after two days. :D