I always wanted both zinny and cucurella. It's fantastic depth.
I also think with Phillips and with how Bernie is dropping deeper that we will play (we did last season) more of the 4231 with 2 in midfield behind a 10 (usually kdb).
I see no reason why zinny can't be depth here as well, with the other options of rodri, phillips, Bernie and gundogan.
I would even like to see gundogan pushed higher to rotate with kdb more as a 10 than deeper. Look at the aston villa game at the end, pep in one of the rare times last season gave gundogan freedom to score goals and he did.
The season prior gundogan was so good because pep gave him that freedom, he took it back last season for control, but zinny and Phillips could just as easily do that job further back.