Let’s look again at the relationship between Joe, re:CrewIT, and WorkingNet. Remember, Mavis agreed to take Joe onto her team for 6 months. This means that for the 6 months of his tenure with WorkingNet, even though he was paid by re:CrewIT, Joe was effectively a member of the WorkingNet staff. His day-to-day tasks were defined and directly managed by Mavis.

In Joe’s case, because he was temporarily part of Mavis’ team and his tasks were directly managed by her, he was classified as a Contingent worker.
So a worker whose work is directly managed by the buyer equals contingent.