The Supply Chain Process Manager featured in the video at the beginning of Session $09$ has relationships with his coworkers that could be best described as:

Competitors. He is constantly competing with his coworkers because only the best people will get the promotions.

Bosses and workers. Some people give the orders and other people do what they say.

He does not interact very much with other people. Most of his work involves individual analysis that he does in a room by himself.

Friends, collaborating and supporting one another.