Interesting that even after watching him for a decade his own fans can't agree on what he does ... I reckon there is a world class player in there somewhere (and I'm no Jack fan) but I reckon his career has been miss-managed so badly he will never fulfill his potential ... a victim of Wonger ....
Some players need to be told what to do, having a manager who just lets you 'express yourself' hasn't worked for Jack .... he could be a Dele, KDB, Coutinho, Hazard he's shown he has the skill set .... somebody just needed to coach him how to do it .... and how to tackle properly!
Still time if a good manger gets him by the balls ........