Sorry but did you completely forget the howlers Willy made in the last game?(could have had at least two goals from them) Willy can get away with that though the naysayers have forgotten all about it but if it were Hart it would have been repeated countless times by now. That's the difference. Hart tried to pass out from the back but the players on the field at the time weren't comfortable and kept passing it right back to him... that's not what he needs to adapt his game. He does need to improve, he does want to stay at this club I'm sure of that and he is smart enough to understand he'll need to convince Pep he can work with him.
Willy made those howlers by attempting to carry out what was asked of him. The midfielders made that more challenging than it should have been but that's natural given its a new system.
First the record I think both Joe and Willy are lacking in this area.