1) Still involves us having to identify and sign a quality replacement, quickly.
2) Doesn't solve the Ronaldo problem at all. We'd still have a disruptive, high-profile presence in the dressing room who wants to leave, except he's now further agitated because he's also not playing.
3) Leaves our two options at CF as the aforementioned discontented disruptive presence who also isn't an easy fit into the team stylistically and Anthony Martial, a player so liable to not performing that nearly everybody expected him to leave this summer having returned from a mid-season loan in which he also didn't impress. Aside from which, ETH has already made clear that he needs an attacking signing, so if not Sesko it would have to be someone else.
Current odds have all of City, Liverpool, Chelsea, Spurs and Arsenal as being more likely to finish within the top four than us. In other words you can can tell yourself the squad is good enough for top four all you like, the reality is that we're still a lot more likely to finish outside the top four than not.