He told BetIdeas.com: "It is frustrating but certain clubs and the way they play aren't suited to certain players. Everyone seems to think it's just Pep didn't let him drive past players - no. Doku was allowed to drive past players. He wasn't saying ‘Jack you can't and Doku you can’. So there's something else going on there and one of the things that's going on is space behind. If you play for Manchester City you come up against these massive blocks of players all the time. In the last third you may get a lot of the ball but you're just a blocker then, two or three in front of you and if you lose the ball they don't like that. If you're playing at Everton, home or away, you're not kind of coming across that all the time. You find yourself quite often one on one with a defender. That almost never happened to Jack when he was at Man City. So he's given the freedom of space. It was up to him to see if he could react to it. And he's reacted to it brilliantly. Absolutely fantastically. It's the simplest thing of, ‘Get the ball in the last third, go and beat somebody, and if you don't, we don't mind’. The fans will accept that. Now that the manager accepts that, then this is all good for Jack. And you see in his face, he's beaming. He's smiled more in the last month than I've seen in the last year. That tells you a story."