You would imagine that loyalty / blind devotion to Gus Poyet is the primary qualification for the job. I don't see Gus surrounding himself with people that contradict his thoughts or are anything less than fully enthusiastic about each and every one of his ideas.
Gus will be coaching Fredy Guarin and Obafemi Martins, and amongst various China internationals, the wonderfully named WANG SHOUTING https://en.wikipedia.org/wiki/Wang_Shouting