The biggest issue I see still is that we're a group of very good players, not a team of them.
Collingwood over the weekend had one of their weakest possible teams, but because they play as a team they were able to still play the way they have trained even with change in personnel. Hawthorn, as shit as they now are, were able to overrun is with a team of VFL-level plodders because they played as a team. Their players knew that if they made a mistake, there would be someone to back them up who knew what to do, and were prepared. They all knew what to do, no matter the situation.
In our case, we have players that have plenty of talent to burn, and if they're holding the ball in their hands without pressure can do all the footy things well. But it's the inbetween time where we fall apart, where your ability to produce your best depends on what your teammates are doing. Playing the game against actual opposition doesn't give you the chance to do what you can do at training, or taking shots on an empty oval. So it falls on the guys around you to create the conditions where you can do that.
I picture it like
the creation of baseketball, where they talk about being good at basketball, "as long as we don't have to run, or jump, or dribble". Our players are good at footy, as long as they don't have to shepherd, or run back in defence, or not bump into each other when going for a mark.
Good teams are smart and well-trained enough to execute a strategy based on their situation "Our teammate is under pressure in the back pocket, so we execute strategy A, GO.", and each player assumes their role.
Our guys seem to execute only the next action "My teammate is under pressure in the back pocket, I'd better do X...he handballed to me, so I'd better do Y" but they're not in sync. They're a group of talented guys doing individual things, hence why we get caught out of position all the time.
What's the solution? Leadership, concentration, commitment, repetition, adaptability, resilience. We've lacked so much in these areas for so long now, and Teague's biggest challenge will be breaking those old habits.