My feeling is with Sterling, Jesus & Gundog entering the final year of their contracts, this team has run it's course & is as good as it's going to get & has gone as far as it'll reach.
Sterling & Jesus needed fresh starts & good luck to them both. Gundog is unlikely to be a starter, or offered an extension, so a similar but younger type of player in FDJ would be a long term upgrade.
It's unbelievable that we STILL don't have a specialist LB, which is why I feel we need Cucu & one from Raum or Sosa. Even with all these changes, most are upgrades & it still leaves us with more than the core of the squad we had last season.
Haaland & Alvarez are hopefully upgrades on Jesus, but I'd still be mindful of replacing Sterling, as his goals & assists will be sorely missed, if not adequately replaced.
In these respects, I've personally few issues making so many changes. We need that something extra to maintain our quest to stay ahead of the PL chasing pack, & to unlock the Champions League we so badly want & squandered vs Chelsea.