Seeing as our players, bar Debryune are all of similar quality, I don't see how picking guys like Ilkay and Bernado is considered resting players. These are superstars in their own right.
I'm comfortable with any of our top 17 starting.
Ederson
Walker
Mendy
Danilo
Delphino
Komps
Stones
Otamendi
Dihno
Kev
David
Ilkay
Bernado
Sterling
Sane
Jesus
Aguero
Any 11 from the above 17 is fine by me.
The drop off (or significant drop off) starts with Yaya, Bravo, Mangala amongst the senior players and then the youth players...Zinch, Foden, Brahim, and Adarabioyo. Plsaying Any more than 1 at best 2 of those players at the same time may show weaknesses.
So I'm pretty good with any of our key 17. But not the others.