I am a firm believer that a big fullback type player is a key to defensive structure and ultimately a solid backline. I know we don't tend to see the big full forward types in the AFL as much these days, but a big fullback still seems to have a key role to play even if they aren't overly mobile.
I remember when we put Jarrod Silvester into our backline. He wasn't the long term answer, but I was amazed at how much better our backline looked structurally when he played. I know it was only 5 games, but we just looked so much more confident down there with a big full back on the park.
Rance and Grimes came on to the list around that time, but it wasn't until Dave Astbury finally started stringing some games together that those two really blossomed.
Robbie Tarrant was recruited specifically for that role. Hardwick and his assistants see the need for that type of player.
So my point in all this is that I see no heir apparent for Tarrant other than Miller. And while his football development might still have a little way to go, I thought we saw enough last year to suggest that even if he doesn't get any better from here, Ben Miller will fill a role in our backline into our future.
I can see a future backline of ours in a couple of years that has Gibcus playing the Grimes type role, Balta playing that Rance interceptor, and Miller being DTLD.