If Rice gets injured, or Jorginho and Partey both get injured, who plays left 8 for us? Merino sounds like a sensible buy to me. What is the current pecking order at left 8? Rice, Havertz, Vieira? Zinchenko?
I'd love Zubimendi for 6 but I think the worry around that role is a bit exaggerated. We have 3 players who can play it plus maybe Lewis Skelly may come into the equation this year. There may be a couple of games a year where none of them are who you'd ideally want at 6, but they should leave us covered to knock down the vast majority of our opponents across a season.