Our engine room of midfield and ruckmen is the most important area, you can't have one without the other.
So many examples of teams with a poor or average ruck doing excellently, even winning premierships.
Not many examples of teams with a good ruck and poor midfield doing well.
I would say you can have one without the other, as long as that one is a strong midfield. Not that it should be our goal.
We already have a strong ruck, we need a good midfield to compliment it.