The making pottery story requires either one or three prizes to be internally consistent. One overall prize for quality is sufficient for it to work. It seems unfair to the group aiming for quantity to be measured against quality criteria, this is the core of the stories dilemma. If there are only two prizes you would need to be clear either prize could be won by either group.
It parallels a Taoist story in which a painter finally provides an image for a client who is upset that it appears to take him so little time. The client is only satisfied when shown the many earlier iterations that built to the final piece.
Interesting that the “Leane Production Pipeline” was developed in Japan which has such a strong Taoist history.