I tend to agree, I think SG is trying to replicate the man City model (certainly as far as our midfield is concerned)
Looking back on last season man City left players out of games that most teams would consider first picks for example a fit de Bruyne was left out of some high profile games, even de Silva at times.
I think the ethos being they are expected to reach the highest of standards at all times
In theory Jack, Kamara, Aribo, Davis & Doc become almost interchangeable with two from the five playing in that role with arfield, Aribo, possibly Jack or Doc also considered for the role slightly further forward.
I think SG expects his players to be able to achieve this rather than having a starting 11 whether they are good enough is the question.
Imo