Laporte says he wants to leave. If he stays - yeah - I think we're good at CB. If he leaves - I think we need backup as I'm not sold on Aki.
WRT Messi - maybe he was sold on PSG - but why? Some sort of dislike for Pep?
WRT LB - just get rid of Mendy at whatever cost. Free xfer with wages paid if we need to free up a spot. LB is a big problem.
DM? - Look - there's at least two roles as a deep lying mid. Metronome/linkup play and destroyer. Most players do not fill both roles. Gundo and Rodri are great at linkup (especially Rodri - Gundo is good at deep and coming in towards the box to offer goal scoring opportunity). Neither are good in the role of destroyer.
Fernandinho was a very gifted destroyer in his prime and was at least good at linkup. Top class. But he's well, well past his prime.
At deep lying mid - we have an aging Fernandinho as destroyer and no one else. We really need a DM destroyer - someone who is fast and who can sniff out danger and break up plays.
Thinking that we're good at DM because we have Fernandinho, Rodri and Gundo is taking a much too simplistic look at the role.
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WIth regard to striker - we made the decision to sell Aguero. Knowing that Jesus and Torres are very iffy at best in the starting striker role. Either we should not have sold Aguero (yeah I get that he's often injured) or we should have had a rock solid transfer replacement (not necessarily of the same class but at least someone to tide us over, say an aging player who is nonetheless good for a season or two) lined up.
As the transfer window draws to a close, it's apparent that we're possibly going into next season without signing a replacement for Kun. Which to me - quite frankly - is the fault of whomever is responsible for transfers at City.