Why? Between us and Atletico Madrid, there is very good evidence that defensive-first is a mindset that still works in Europe. Just because Atletico lost two finals to Madrid by the tiniest of margins (especially the first where they were seconds away from winning), and we lost to Barca although again by the tiniest of margins considering it is 1-1 60+ minutes in when the Pogba incident occurred....
I'd say that's good evidence that our mindset is just fine in Europe.
Yeah but I can list some facts that put defensive minded football at disadvantage
1. Fact, you win in football by outscoring your opponent, you can build literal concrete wall on your goal but if you are not able to outscore your opponent, you won't win that game. My gut say that if an extensive research and experiment being run that pit defensive players against offensive players all over the world, the offensive ones would outperform the defensive ones. Well imagine yourself, a team full of chiellini vs a team full of higuain, a team full of maldini vs a team full of ronaldo, a team full of gattuso vs a team full of kaka, etc.
2. Fact, offensive football sell more and worth more $$$, like it or not, the zach of football fans are in utter tiny minority of the market, that is just how the world works.
3. Fact, cl winners and annual contenders are dominated by offensive minded teams, the defensive minded ones tend to just won once in a while and often turned into mediocrity afterward.
4. Fact, even in this forum, we are more scared to play against offensive minded teams.
The facts are in favor toward offensive football.