You probably missed something.
No names! An engineer buddy of mine was on a factory tour featurimg an assembly line in a purpose built building.
He noticed that the shipping and receiving were one department. Parts came into the shipping/receiving department and were run to the cells/stations where they were needed and the finished product was brought back from the end of the line to be sent out.
Brought back from the end of the line… Hold that thought. The assembly line headed away from the shipping/receiving in a straight line then, after being palletized at the end of the line, finished product was driven a considerable distance back to the shipping/receiving area.
My friend: Hey, why didn’t you make the assembly line circle back to shipping to eliminate all this material handling?
Tour guide: Ummm….yeah…we messed up.
…No talk of having a dedicated shipping department at the end of the line. That’s another possibility.