Zinchenko is on-loan to the end of the season at PSV, where he's struggled to make an impact.
De Mos feels City sent the Ukrainian to the wrong Dutch club.
"You see in his body language that he is currently a bit is overwhelmed. And that's a shame, because he has real potential. His dribbles for me are a little like that of Arjen Robben. He does not play for nothing in the national team of Ukraine," De Mos told Omroep Brabant.
"He would have come into his own this season much better with Ajax or FC Twente. There it is more likely that boys play like Zinchenko. (Philip) Cocu doesn't see it in him. It is better for all parties if Zinchenko leaves at PSV."