Yeh all very fair. I would disagree that a 4231 in defence and attack is “defensive” by definition, but there is clearly a reason that a lot of teams are trying to play this “Pep” system .
However, we look terrible playing it. Which can only be because of a few reasons:
1. Too much change too quickly
2. Poor coaching
3. It doesn’t suit the strengths of the players.
It’s likely a combination of all three, but my biggest concern is point 3. For me, it highlights a lot of our best players weaknesses (Bruno sloppy possession when covering deep, Rashford too wide, Casemiro overrun, Shaw too narrow), whilst taking away all of their best qualities.
I just don’t think we have the squad for the system… it would need ripping up and starting from scratch.
So until that is a reality, play to your strengths.