Since this is the 1/16-Finals of the copa this means there are 4 more possible games for Barca after Cornella. I would play an absolute B-Squad, no need to go all out in a season where the squad is already running on the last tire. If we go out this or next round so be it,
better have some weeks with only one game considering the CL qualification is at stake.
Nah, being eliminated against a Segunda B team is not something we need even if it would be with a rotated squad. I'd be ok if we then draw a solid La Liga team and go out against them in the next round.
Here are our fixtures before the first PSG game.
21.1 Cornella A (CDR)
24.1 Elche A
*27/28.1 CDR Round of 16
31.1. Athletic H
*3/4.2 CDR quarter-final
7.2. Betis A
*10.2. CDR semi-final first leg
13.2. Alaves H
16.2 PSG H
I'd go with a fully rotated team vs Cornella, then with starters against Elche.
Then depending on opponent go with a semi-rotated team in Copa (like 5-6 regulars and 5-6 backups). Some obvious changes in the lineup like Dest-Roberto (if he returns), Busi-Pjanić, Pedri/FDJ-Puig, Dembele-Trincao etc. I know people will disagree with this but I think if we'll really need to count on youngsters like Puig and Trincao more in second half of the season then it would be better for them to start some games alongside at least some regular starters. Messi could start this game as well as he'll be suspended for Cornella and Elche.
Further, go with starters vs Bilbao. And after what happened on Sunday hopefully they'll be fully motivated.
Then if we get to Copa quarter finals I'd again go with semi-rotated squad followed by some light rotations vs Betis (like 2-3 changes in the lineup).
If we're in the semi-final I'd go with the best possible lineup there and rotate heavily in the Alaves game just 3 days before we play PSG. Sure, we might drop points because of that but we're out of the title race anyway and I don't think top 4 is really in too much danger. Sociedad is already struggling and they'll probably be happy to qualify for EL, Villarreal won't keep their form up for a whole season as well so I think we'll finish top 4 relatively comfortable alongside Sevilla.