Depends if he is ready to play in the first team & whether he is a lot better than Nmecha.
The thing for me & which is all important, is that Nmecha & indeed any of our academy players, get the opportunity their level deserves. I haven't seen him play for ages, & I had a lot of doubts about him having the right mentality for the job, but the way he took that pen, under pressure, suggests he has the nerve to score goals at senior level.
It should soon become possible for him & one or two others, to get more first team minutes. Then let's see what he has for Pep to work with.
If we were to sign this guy & either of them are to become truly good enough to play regularly for City, then one would have to be the main challenger to Jesus, when Aguero leaves. The other, if good enough, would then be the understudy to those two or play more than one position.
That spot is currently open for Nmecha or Thierry Ambrose.
The way the transfer market is going though & with UEFA's rumoured carve up, on the way, City will have no option but to sign players at a very young age.