I disagree, partly.
It is certain that all of KDB, Gundogan, and Walker would have had reduced roles. Injuries to Rodri, Bobb, Kovacic, Stones, Akanji, Grealish, Foden, and Doku has meant that each has had to play more than we would wish, or has had to return too early.
Bobb will return.
Echeverri will arrive.
Kovacic will be back.
Akanji will be back.
Stones will return.
Ake will return.
Football is cyclical, and we have broken that with record-breaking achievements.
It would be natural for our performances to drop off this year, after the treble and the four-peat.
When you add the injuries and illness the situation has been exacerbated.
We will buy, but I disagree with some of what you say, especially about Doku and Savinho, who I believe to be outstanding prospects. Again, they are playing more than they would have because of the injuries and illness we have suffered.
The end is close for KDB, Walker, Gundo, and Silva, IMO, but a wholesale cull is not required, IMO.