We'll cope. Last summer we had just lost Boateng Mascarell Wolf Hradecky and most importantly Kovac, that was our entire spine and we got like 10m for the lot of them. We started the season with Haller who had a horrible end to the season and Jovic who looked promising but little more plus a new coach whose credentials came from Switzerland and Austria
We now have a spine that has played together for a while already plus up front Paciencia who looks a lot better than Haller at the start of last season, Bas Dost who's ugly but guaranteed goals and might end up hopefully a great plan B plus now Silva. Seeing how other failed talents turned out here like Rebic Jovic or Kostic I'm pretty confident he can come back on track here with his former strike partner Paciencia.
Lastly I suspect the next big sale at the end of this season will be Kostic. He was incredible last season already with 10 goals and 13 assists from wing back (!) with Kante levels of stamina but this season he added even more to his game, scored some corkers from 30+ yards already and looks like he can play almost any position now. The club already rejected more than 40m this summer, he's an insane athlete class on the ball with ridiculous work rate he can genuinely go for double that. Hope Arsenal keep tabs on him, if he goes to anyone else in England we'll regret it.