I think it's important to remember that Dufty has only played six games and he has a mountain of improvement to make in his game, particularly defensively.
Despite the fact that he is indisputably green, in those six games, he's amassed two tries, three try assists, six line breaks, three line break assists, five offloads and thirty tackle busts and is averaging over 122 run metres a game.
For comparisons sake, Dugan has played 16 games and has the same number of try assists, 10 line breaks to Dufty's 6, 6 line break assists to Dufty's 3, 94 tackle busts to Dufty's 30 and 14 offloads to Dufty's 5. Again, Dugan has played nearly three times the games that Dufty has and he's an established Kangaroo-level rep player, while Dufty is a 21 year old in his first year out of Holden Cup. The only area Dugan is noticeably superior to Dufty is try saves (Dugan still only has two) and run metres, and even then, Dugan's averaging 138 to Dufty's 122, which isn't a massive difference.
Point is, I said I didn't want Dufty in grade til next year and he's shown that my wife was right: I am an absolute idiot.