Totally agree with the first part. The real top managers constantly reinvent. Pep is the master. Lesser managers like Ange, or Russel Martin, or even Dyche, cling stubbornly to one style of football, it doesn’t make you principled it just limits your shelf life. Too much analytics in the game now- if teams know how you’ll play they’ll work out how to beat you.
Thought Moyes got it spot on yesterday with his sort of hybrid approach at the back. None of us knew for sure what it was going to be from the team sheet, I’ve seen people argue about what it was even now it’s been. Worked yesterday, might work next week, won’t work forever. I’m sure unlike Mr “this is how we play, mate” Moyes is canny enough to know it.