Sadly, the 2 giants are not really fit even now, and early on this season they were supporting each other, almost 2 for 1, while Blic stayed on as well, or was the sub. Now, nearing September, they probably do have to make choices.
My issue is, I don't see HMc as the backup option, in preference to DS, for Blicavs, but isn't it interesting that Blicavs has become the fixed option in that trio.
HMac should be playing finals because he is the most experienced.
Simpson just isn't fit enough to play back to back finals and Blicavs is a weak ruck and poor in high pressure games.
Horses for courses is the best option I think, I certainly would rather a fresh Simpson with HMac as no2 vs Freo and I think Hmacs ability to go forward vs Hawthorns small backs is also useful.