You say hes not good enough for a back 4, has he ever played in a back 4 for you?
Like I said the other day I watched wolves v Beskitas in Alicante and he came on in a 4 and was run ragged and was very poor.
Granted only one game but a snapshot of how he performs in that system.
Seems we’re going with a 3 at the back and who are you going to get that’s better than him for that system.