I think McStay is the prime candidate to play that 3rd up role, reads it really well and is a strong contested mark. The problem is, he probably also looks like our best young KPF, so he'll end up playing both ends a lot I would say.Another thing that'll be interesting to see next season is the spare man. If, as predicted, we get a good run at the clearances opposition teams will probably put a spare man back. How we fare shutting down the rebound from defence will be crucial to our 2015 imo. It could open up Rich to play a really counter-attacking role but he'll desperately need to work on his third-man up play. Without dwelling on it too much but Patfull would've dominated such a scenario!
I personally would like to see Bourke or Cutler be given Patfull's old role next year, both showed a bit from limited exposure last year, although, I've probably got Bourke marginally ahead in that role at this stage.
Also, I don't understand why so many have Martin/Berg playing forward. Neither have shown any great ability up there, however, Martin has shown great ability in a ruck rover/wing role, similar to how Geelong play Blicavs. I think that's how they'll line up again round 1 next year.
The tall forwards will be two out of Freeman/Staker/Close/Merrett with McStay swinging down there at times. If Merrett goes into defence, I think that Maguire will probably struggle to make the team next year (unfortunately).