It's only so long the system can cover the cracks, remember during Emery's win run we looked bad in pretty much every game and it came back to bite us. I don't see use finishing top 4 until we get a squad overhaul tbh, guys like Xhaka and Lacazette being mainstays in the team isn't gonna get us top 4. Bellerin is another one that can be so poor and a weak link at times. Ask any Chelsea fan about Willian and they'll tell you he's massively inconsistent. He'll go from the best player on the pitch in one game to the worst in the next. Pepe seems to be a flop as well. Our signings aren't helping us get better in the long run so even new players are holding us back.