Had a look at players at his age, in a similar position, who played over 1,000 mins last season in the top leagues around Europe. It's a short but very good list of players.
Sandro Tonali, Boubacar Kamara, Hamed Junior Traore, Eljif Elmas, Aurelien Tchouameni, Yacine Adli. (Any of those in bold would be fantastic signings for us going forward)
If he's not getting on the pitch much, I would like to see him go out in January. See how things shape up.