I'm hesitant about getting a new, top class CB in next season, purely because it doesn't leave a lot of spaces. Assuming Dave and Luiz are nailed on starters, which they probably should be, that already only leaves 1 slot, with Christensen, Zouma, Cahill and potentially Ake to fill it. That's already 3 starters and 3 backups, and I worry that if we get a really great player in there, there will be very little time for the 2/3 younger lads to get a look in.
Squad depth and some more options would be great though. Got any names in mind for wingbacks?
You are probably right on CBs. It all comes down to just how much Conte trusts Christensen, Zouma and to a certain extent, Ake to step up and play significant minutes especially as we will be in the CL next season. My standard rule of thumb to determine whether a back-up is good enough really is - Do you trust him to play for an extended period in our first team if our first choice XI players are injured?
So do you trust Zouma or Ake to play an extended run of games if Azpi, Luiz or Cahill get injured? Either way, I agree that CB is not a priority.
I have no idea about wing-backs but I believe damola suggested some names from Serie A a few pages back.