He’s been bounced from Southampton to Juventus to Flamengo. If he’s getting game time, which he is, then I doubt he’s going to want to move again potentially dropping down a level just so he can start every week. He’s one injury away from being the first choice number 10 for a PL team. He could easily make that position his own as well as KDH hasn’t pulled up trees in there and probably needs to move back and if it’s Grealish moving to 10 then he is not going to be hanging every game for 95 minutes.