But we said that with conte and mou. I kept thinking why don't we use what we have better? Ange has somehow managed to negate Son talents?
Coupled with that and I still don't think some of our players are technically great. You can request things all you want. But if your players can't do basics then it don't matter.
It's just my opinion but some managers rely on very strong systems while others rely on players' talent and inspiration, for lack of better words. In this regard, Conte is very similar to Postecoglou: they live and die by their system, and players have to adapt no matter what. It failed spectacularly for Conte and, so far, most are sitting on the fence on Postecoglou. From what I've seen, I think Postecoglou's system would work better if our wingers were able to beat their man, for instance, but since the system is set up that way, he won't change it because he doesn't have the required personel. It was painfully obvious with Conte, too.
When it works, this approach often creates very strong teams, at least until someone figures out a way around your system.
I'd say Mourinho's approach is very different: he does have a few features that survives from one team to another but he tweaks his formation and tactics in order to play on his players' strengths. He gave Aurier a lot of freedom, for instance, and he certainly got the best out of the Kane-Son partnership by giving them a lot of freedom on the pitch. If I remember correctly, one of the common griefs about him at the end of his tenure (aside from his... abrasive personality) was the lack of proper coaching.
These things are always considered in hindsight, anyway. Once the team falls apart for whatever reason (poor result, loss of an important player or personal issues between the manager and the players), his approach is considered as rubbish. The bottom line, for me, is that a 'system' manager will never play on a player's strengths and that's why some of the teams that enjoyed a lot success with that approach invested a lot in their youth systems (Ajax, Dynamo Kiev, Nantes...); that way, they could mould the players into what the manager needed.
Otherwise, you need a lot of money to get exactly the kind of player who fits in a specific role.