Pep said this is a "final." Plus we are playing a PL team away.
He will make changes but some suggestions here are ridiculous.
With important senior members of the first team needing minutes Pep won't start the kids. They haven't even made bench recently.
Would expect to see something like
Bravo
Danilo
Stones
Kompany
Mangala
Delph
Gundogan
Bernardo
Sane
Jesus
Sterling
Mangala, Delph, Gundogan, Bravo, Sane all played very little and need minutes. Bernardo also needs to play. I think it would be drastic to start Yaya as he hasn't played at all. Put him on the bench and bring him on early in the second half for Gundogan. Sterling has not played much recently so he should start despite playing the full game today.
If we are winning comfortably we can bring on Foden/Diaz/Tosin otherwise we need to bring players like De bruyne/Aguero to try to win the game. Pep wants to win it all he is not going to throw away the game and start Diaz, Foden and Tosin, I know they did great in pre season but a trophy is on the line here, to many not a "big" one but a trophy is a trophy.