If Josh is injured this week, then it would be a useful experiment, and use Dawes backup ruck. I think it can work in that case. But the Kangas have a strong ruck division...one of the best...so I would not be going in with a make-shift ruck.
Yeah this concerns me. I've seen most of Norths games and they definately have a strong ruck comnination and this is why its gonna be very tough for the selection committee with who is ommitted this week. Who knows.. Hopefully fraser is fit and we don't have to make any changes. Wood IMO has the skills to be a better ruckman but Josh is more versatile and thats why he will get the nod ahead of him at this stage.
Structure is key and if it aint broken dont fix it.