The whole team have defensive responsibilities, and they especially have a responsibility to work hard with and without the ball. I’ve never seen him put in a proper Sam Walker-esque shift. I don’t really care whether he’s skilful, that alone rarely wins games.
As I’ve said, if he can add a bit more graft to his craft then he’ll be an excellent player. But he’s nowhere near being in the position to walk straight into the team and shirk what is the bare minimum.