This is where we failed last year. Last year Pep ran certain players into the ground.
This season, we should learn from that. Sure, we don't have the old lads who were already past their prime, but you could see the mental fatigue in Sane, Dinho, Delph last night.
I really hope he rotates as we will need to depend on the Danilo's, Gundogan's and even Mangala's before this is all done and dusted. We will be better served getting everyone playing at a high level now than trying to drop them in on short notice. A crucial week ahead in that regard.