I think people are more critical especially in the past of us drafting small 70kg skinny kids who don't have the frame to put on 10kgs and so they will never have the physical presence to last in AFL. They'll be too easily pushed aside by bigger stronger bodies. Apart from Nason that's not an issue this time around IMV. Astbury will need a couple of years in the gym but he's tall so he should have the frame to put on another 10kgs.
3. Dustin Martin (Vic, 18, 186cm, 88kg)
19. Ben Griffiths (Vic, 18, 199cm, 98kg)
35. David Astbury (Vic, 18, 195cm, 81kg)
44. Matt Dea (Vic, 18, 186cm, 83kg)
51. Troy Taylor (NT, 18, 189cm, 77kg)
67. Jeromey Webberley (Tas, 21, 181cm, 78 kg)
71. Ben Nason (SA, 20, 179cm, 73 kg)
I always had the view that the last two digits of your height should be close to your weight to play AFL and the minimum height is around 180cm unless you have exceptional pace like a Rioli. 4 of the above already fit that criteria.