The Blues have six players on-loan at the Dutch club.
"If it is working with Vitesse it is because the Dutch league plays in a desirable way and they have done what they promised," Emenalo told chelseafc.com.
"When they say they want a player and we say are you sure you need him and they say yes, the player actually does play.
"If tomorrow a Championship team in England wants the same kind of relationship with us it is no problem, Vitesse has no exclusivity."
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