Seems pretty clearly explained here. >Technology executives with authority over contractor requisitions and interview processes can direct substantial volume t

Seems pretty clearly explained here. >Technology executives with authority over contractor requisitions and interview processes can direct substantial volume toward "preferred" staffing shops. In exchange, these vendors provide kickbacks that, in Walmart's case, generated what sources estimate as millions in illicit payments over multiple years. For more info: https://en.wikipedia.org/wiki/Principal–agent_problem https://en.wikipedia.org/wiki/Principal–agent_problem