I wouldn't. He is a sloppy defender on the wing.
Don't need that coming in field.
Very different demands though. Doesn't have to worry about the kicks, which must put him in two minds as he is poor at diffusing them, and he is pretty strong but not really fast, which would be a better match up against a lot of opponents.
We don't see much lateral defense from wingers (only against air borne opponents which is a unique challenge I'm not sure anyone has figured out) so that would be a crucial skill for him at centre.
Given that Lee is in better form but Feki does contribute powerful runs, I don't think it is a big risk to try him at centre for the jets and see how it goes. Seems to me that is the point of having a feeder club.