Old Lion
Pay no attention to that man behind the curtain
Heard same argument for guys like Jonte Green, Chris Greenwood, and Jason Fox until the day they were cut.
Green was actually pretty good for us in a few games before the injury. Not the same afterwards. Never like d Greenwood. D3 guys usually don't make it. For every 1 that does there are 100 who getted picked up and don't make it. Fox never recovered from the injury as far as I can see. Think he lost his confidence. Before the injury he was a 1st round pick so it was noting more than a roll of the dice.
I also see your point, but in Fullers case it different in that he needs time only because he did not play the game very long. No guarantee that he becomes good, but again its a small gamble that could pay off big.