The bare minimum for any footballer IMO is to run around a football pitch. Any player not willing to do that doesn't deserve to be in the game. Someone like JET, who has undoubted ability, but has failed to fulfil that potential purely through a lack of effort is a waste of time. Numerous managers have signed him thinking they're getting a 'real star' , yet nearly all have ended up with a lazy dud. SE would not even entertain signing JET IMO, purely on work ethic alone. That's the bare minimum, something JET has proved repeatedly is beyond him.
IMO it's not about managers, this is about JETS attitude to work. Until that changes no manager will get anything like the best out if him. You'd have thought by now, at 29, the penny might have dropped, but it clearly hasn't.