This team is a mid table side 10th - 8th .
To get into the top 6 we need a starter right back , a back up left back that CA will actually pick , a sitting midfielder and a striker who can play all 3 front positions if required.
The RB should be a permanent signing. I will leave the names to the more knowledgeable on here but my choice ( if he's fed up with Spain and wants to return north ) would be Trippier.
The back up left back can be a loan unless CA really doesn't fancy Niels in which case we need to buy.
The sitting midfielder could also be a loan if he sees a long term future in Gbamin.
The forward who can play all 3 position is a tricky one and for me the standout candidate is Zaha.
The bigger jump is the top 4.
To my mind , in addition to the above we would also need 3 top class players.
A goalkeeper of the standard of Oblak , an up grade on Keane at centre half and a world class striker .
It would be impossible to achieve this leap to top 4 in 1 window but progression allowing us to secure a top 6 place should be possible after the January and / or summer windows.
Of course all of this assumes that we retain all our better players and get rid of the likes of Delph , Sigurdsson , Bolasie etc which to date Brands has failed to do .