They follow this up with a very good kick-chase, which puts pressure on the opposition who, faced with a wall, often opt to kick back. This results in the Brumbies winning, I'd say, about eight out of every 10 kicking duel they become involved in.
So how do the Chiefs counter?
For a start, they need to know it's coming, and I'm sure they've been working hard on this all week.
The back three, no matter who the ball gets kicked to, have to work on getting back behind the ball, but to truly counter the Brumbies, I believe you need to get at least one of the centres - Sonny Bill William and Charlie Ngatai - back behind the ball as well.
Most teams usually work on a two-pass policy to launch counter-attacks and kick returns. To get around the Brumbies kick-chase, I think you need a three-pass policy.
If the Chiefs do this, they will go a long way to nullifying the Brumbies' most oppressive tactic.