As far as I'm concerned we're starting to get interested Skriniar for Jan. There were thoughts about Kouilbaly in summer but we didn't make any move. You don't know if a player is available or not till you make actual offer ( see Ronaldo or Neymar ), and considering us spending only 70m in the summer, I don't find any particular reasons for not coughing a 100m offer for Kouilbaly or something and see what will happen. He would have been worth the money. If we make a 100m offer, gets refused, or they ask for 200m, that's when we say "ok, we tried, we didn't save our money, no one to be blamed here" and we move on with our heads up.
I'm not sure why you're blaming PL teams for closing window early ? I mean pretty much only 2 teams suffered from it, us and Spurs, and that was even World Cup year. Everyone else prepared themselves for that outcome and finished what they wanted early. Surely if only 2 clubs suffered from it, it's their own problem, not the rest ?