Mason - His quality is debateable, but he made that position his own when he first broke into the team. Agree we could probably do better going forward.
Dembele - Not sure how many more chances we can give him to try and to rediscover the form that led him to single handedly destroy Manchester Utd (for us and for Fulham) in his first season. A very frustrating player.
Chadli - Completely disagree. 11 goals, 5 assists and 41 chances created. Our most productive midfielder after Eriksen (who went missing about half way through the season and left Chadli and Kane to pull us over the line).
Those are better numbers than Stirling, Coutinho, Mata, Di Maria, Yaya Toure, Ramsey, Ozil, Milner, Sigurdsson.... i could go on. In fact numbers wise there are probably only about seven or eight midfielders in the league who had a "better" season.