Parker is no better or worse than last season. He's always been a complete donkey on the ball, its just now it gets highlighted more because we don't have a natural playmaker in the team: he cant just lay the ball off to Dembele and leave it to him. subsequently he's being forced to get on the ball more and just how brick a footballer he is is being brutally exposed.
He still has great positional sense (when he is playing in an exclusively defensive role), has a great tackle and works his arse off. He IS still capable of doing the simple things, but being a part of THIS particular midfield duo means that his is forced to try and get involved in build up play and is being exposed. Dont' see the issue myself - we've alll always know he's toss on the ball haven'T we? Every team needs its die for the shirt, limited workhorses.