Koulibaly or no Koulibaly i feel we still need to consider looking for a proven quality CB to get things straighten up, for many reasons, altough if we evaluate the situation right now we kind of already have enough, at least in terms of numbers…. De Ligt - Bonucci - Gatti - Rugani + Danillo as makeshift CB when needed seems not too bad to start with if we do focus the remaining funds on improving the wings and midfield after all, or so it might seem at first sight.
Main concern here tho is that we do not know how available Bonucci will be or what version of him will we see next season along with also Gatti altough promising still largely unproven on the biggest stage, with De Ligt himself not being the most consistent of defenders out there either, meaning we might find ourselfs with some very uncomfortable CB pairings that might be starting in a good chunk of the important games.
If we do go into the new season with this group than it means we are likely putting all confidence in Gatti to stay fit and to live up to the expectations, which i sure hope he will if it eventually comes to it.