Why does it have to be entirely one thing or the other?
Of course you have to have a strong system. If you don’t, you’ll get nowhere.
But you also have to have the flexibility and tactical sense to change things around if it’s necessary. If a particular opposition player is dominating and cutting us to pieces, or if the opposition are using a tactic that’s working effectively and leading to goals, the coach needs to be able to spot that early and identify the changes that need to be made to shut down that player or nullify that tactic.
I think Worsfold is very good at preparing players, identifying their strengths and weaknesses and motivating them to play with system and intensity. I don’t think he’s great at the matchday tactics. Eg in the Hawthorn game it was clear that our attack just wasn’t functioning all day, and yet it wasn’t until the last 10 minutes that he actually made a move — Hooker forward — to do something about it, and by then of course it was too late.