Depends on the state of the list in question. Grigg could be worth a rookie pick surely. There are teams seriously lacking in bigger bodied midfielders. Get him fit and Grigg could slot into Carlton's midfield and even if he's not that great, he can be a temporary solution while they develop their young guys like Walsh.Being realistic, he bombed his chances about two years ago. No amount of SANFL performance is going to cancel out that he's been on an AFL list for 5 years and delisted. That is the career over point at the highest level.
After all the biggest problem is the perceived lack of development left in him, meaning what you are drafting is someone who has proven that he is too good for SANFL, not good enough for AFL. Why waste your time with that?
Barlow is another one. I'd chuck a year at him if my midfield stunk as badly as Cartlon's.