I want Mustafi, Sokratis, Kolasinac, Xhaka and Lacazette gone. To use Arteta's language: this is non-negotiable. I would also really like to see Torreira moved on and Özil effectively put out to pasture by making that move to Turkey a reality; as well as Elneny and Mkhitaryan's loan clubs stumping up some money for them. I'd add David Luiz but he has a few upsides and might be useful as a squad player for the last year of his contract, but I'd happily see him moved on too. Bellerin is on thin ice but I'm happy to give him this summer to put some muscle on and fully recover after his horrible injury.
Build around Leno, Saliba, Tierney, Saka, Smith Rowe, Nelson (although kid needs to step up and soon), Willock, Pépé, Martinelli, Nketiah and the main man Aubameyang.
I'd like to add Maitland-Niles because I think he could become a monster right back but frankly the way the guy has behaved he deserves to be playing on the right wing for Southampton next season.