This clip represents a wonderful account of all the moving parts of Walter’s methamphetamine enterprise. Walter and Jesse cook, Lydia arranges and oversees the international shipments of methamphetamine, which are disguised as shipments of various chemicals between the subsidiaries of the multinational enterprise she works for, Todd coordinates the transportation operations, and Skyler is in charge of accounting and money laundering. Here, the division of labor and the comparative-advantage based specialization is what makes their enterprise successful. If one or two individuals tried to run the same operation (like when it was just Jesse and Walter), they would not be able to produce as efficiently. The downward sloping portion of the average total cost curve is the area where the benefits of specialization outweigh diminishing returns from adding additional workers.