For me there are some player who have to go, then there are other players who we should let go if we sort out an improved replacement, but the priority should be those who have to go
Yaya, Nasri and Kolarov all need to go due to their attitude, I think it's toxic and it's a terrible example to set for the other players to have such established players who only try when they fancy it. Zaba and Demichelis need to go because they are finished at this level. Bony and Caballero need to go as they just don't fit in the team and have no place here.
Once we've sorted all that out and sorted out replacements for them we can start looking at the players who we could improve on but could still do a job if needed. Clichy, Sagna, Mangala, Otamendi, Delph, Navas and maybe even Spanish Dave should be all be on the line depending on who we can get in and what Pep think of them