Lukaku - Aubameyang - Think this is a good replacement, but only short term, will still need to go back to the market next year.
Werner - Sterling - great replacement, think Sterling will do well.
Rüdiger - Koulibaly - Definite downgrade, Koulibaly already looking shaky and didnt realise how old he was.
Christensen - Fofana - Potentially excellent, Fofana looks a player, heavy fee though
Emerson + Alonso - Cucurella - expensive replacement considering Chilwell is still there, but a good player
Niguez - Gallagher - not a transfer as returning from loan, but dont think hes a huge improvement anyway considering Chelsea considered loaning him out again
Barkley - Zakaria - Dont know much about Zakaria admittedly.
Hudson-Odoi - Broja - not a transfer, returning from loan again - but think Broja looks a player. good swap for Hudson-Odoi