I've said elsewhere that we gave a real mishmash of a squad but even last season it was extremely obvious that our fullbacks were more suited to playing as wingbacks. Even McCallum makes a passable wingback.
We don't have enough height in the the team so playing 3 CBs helps that as well. Gives us width without trying to play wingers/wide men which hasn't worked for 2 years.
With the players we have, this is the obvious formation
-----------------------------------------Cooper(Davies)
-------------------Bindon/Godfrey-----Mee/Tanganga/Bindon---Robbo/Z
-----Seirki/Godfrey----------------------------------------------------------Burrows/McCallum
----------------------------------Peck--------------------Soumare
---------------------Hamer/Brooks----------------------------------Barry/O'Hare
----------------------------------------Campbell/Cannon/One
Said similar mate.
There still seems an awful lot to do.
If you revert to a 3-4-2-1 then not so much.
Complete moves for Mee and Tanganga. Offload Robinson and Norrington-Davies. Bring in someone like Choudhury or Iroegbunam. Then done. You don’t need to mess around to get crucial wingers because you don’t need them.
Keeper - no worse than last season, Cooper, Davies, Faxon.
Wing backs - Seriki, Burrows, McCallum can thrive there, I reckon Ukaki could work as a RWB alternative too.
Centre backs - Mee flanked by Godfrey an/or Tanganga to the right and you can ease Zatterstrom into the team in a three far more readily. Less pressure on Bindon too. That’s 5 for 3 spots. Arguably McCallum has attributes to play LCB given he’s extraordinarily good in the air as well as quick before out even consider Sasnauskas.
Midfield - Peck alongside a Soumaré or a more experienced version like Choudhury who can also cover right side and I reckon could be a centre back in a three if needed. You then will have hopefully Arblaster and Davies adding depth.
Attacking midfield - finally a system that allows Hamer and O’Hare to play with freedom and introduces Barry and/or Brooks without pressure of starting.
Forwards - Campbell as no 1 with two creators behind him. Option to go 3-4-1-2 with Oné and Cannon.
That’s 25 players mentioned. Reasonable balance, no silly transfers to make it happen.