Joe in my opinion is better than Willy in every department if you`ve seen all the matches that Willy has played in his passing to the defenders has been nothing short of woeful
If it is 'woeful' it's still actually a better success rate than Joe's, so it just shows how far away Joe is.
I think on the whole people look at it the wrong way. Pep is not there shouting at the keepers for getting a pass wrong, he's shouting at them for not spotting a pass & attempting it, in the first place.
He accepts that passes will go wrong & even that it will sometimes result in a goal against. The same will happen to Stones or VK or Otamendi or Kolarov. He will accept it as one of he hazards of this style. That doesn't mean he will accept them getting it wrong all the time or cracking up, but he'll accept some mistakes.
If you watch Willy & Bravo play, a simple difference between them & Joe, as one example, is the straight pass down the middle to the midfield, sometimes between oppo players trying to press.
It's unnatural for Joe to play that ball. But all Pep's keepers do. So do our academy keepers. If Joe has to make that pass, but really doesn't want to, he wil more than likely fuck it up, or choose the wrong time to do it, or hesitate, so we get mugged, because it's not in his nature. Then he's under more pressure the next time etc etc.
It has to become something he is comfortable with, & sees the possibilities of, not something he is forced to do & thinks is wrong.