Tactically, I don't think there is a 'way' out, which is why I can't see a way out of this other than playing last year's team to burn out, but with Ekitike at 9 and Wirtz at LW, which is why the signings look like a cluster-fuck.
-----------------Isak----------------
--Wirtz-----Salah/Ekitke----Szobo---
----------Mac------Grav-------------
---Robbo- VVD---Konate----Bradley--
_--------------Marma------------------
If I had to throw something slightly alternative together, it would be this. It's nothing overly radical, but Wirtz and Szobo have the legs to press and support the fullbacks. It moves Salah closer to the goal rather than fucking everything up out wide, and it can be a way to have Isak and Ekitke on the pitch together, on the sunny afternoon in May when Isak's body decides to be fit. I'm not convinced this squad of players can go to a diamond formation—mostly because of the DM role, the wide positions, and our ability to keep the ball is shite. A diamond generally gets very quickly exposed in transition.