I think it was problematic when Ten Hag was only confirmed in late April, and took over in June, little time to plan for anything, not excusing it, but I understand that the fact that Ten Hag came into the equation late and it meant that moves for players in the summer window will also be made late as well.
And I understand that it will take few summer windows to fix this squad, but for me, this summer, the most urgent priority was/is Midfield, it needed an urgent overhaul, and at least 3 new players to be signed, and I get Ten Hag wants De Jong so bad, but I do not accept Ten Hag & Murtough not considering other DMs/CMs, in addition to De Jong and Eriksen, and even though I think both Martinez & Malacia have the potential to be a great players for us, I felt they were not an urgent priority signings for a total of 55M/60M in transfer fees, because I believe Dalot, AWB, Maguire, Varane, Lindelof, Shaw & Telles as a defense unit, are at least serviceable for one transitional season despite their weaknesses, whilst a midfield options of McFred+Bruno+Eriksen+young players will never work no matter who we have in defense.
I am disappointed with how the club hierarchy (Murtough as the DoF in particular) performed in this summer window so far, the team clearly needs new midfielders, and at least a DM should have been signed by now alongside Eriksen, I do not mind chasing De Jong all summer because I believe he is a special player, but at least get in another DM so we do not have to start McFred in a PL game.