It really comes to down to who's fit to play and who the opponent is, isn't it?
Against Liverpool a 532 worked to get the draw against the better side but it wasn't exactly as though we dominated the scouse. The point was fair for both sides but if we're going to be honest we were on the ropes for the last 20-25 minutes.
Going forward with this squad, assuming full fitness, I still like 433:
De Gea
Wan-Bissaka Maguire Tuanzebe Shaw
Pereira McTominay Pogba
James Martial Rashford
The main weakness is in midfield but McTominay is growing into a decent midfielder right before our very eyes. The jury is out on Pereira and for some the jury have already rendered its verdict, but it's the best we can do for now. I'd like to see more production out of Shaw when he returns. And clearly more clinical finishing from Rashford and Martial, which I believe they are capable of.