You want 3 first team starters. Well Martinez is a starting CB, Eriksen will start…we’re getting another CM (be it Rabiot or whoever) so that’s 3 done. The squad depth part I’m happy ETH seems to be wanting to use youth players, better they get a little game time than someone like Mata or Cavani take up their place on the bench.
We have to think mid-long term. The goal is to challenge for the league, that isn’t happening for at least 2 seasons, probably 3 and that’s if things go well. Iqbal, Savage, Malacia, Mejbri, Garnacho, Pellestri, Garner, Diallo, Shoretire, Elanga won’t all make it but some will populate the squad as depth options and some will make it in the first team - add in 2-3 top level signings every summer and we can do it but it’s not done by panic signing ‘ok’ players who aren’t motivated to be here because there are holes in the squad.