Its not really to do with that position he plays, its where he runs, who he kicks it to, how long hew kicks the ball etc etc.
Don't get me wrong im a fan if his "when in doubt bomb it 50m" kicking rule, but unlike Tuck it never seems to be the right option!
Considering he was new to footy when he got drafted, i think it'll take him years to learn all those little things, if he ever does!
I doubt Jacko could ever be used in a "defensive" mould, he comes off as the type of player who could work in an all-out attacking gameplan, considering his running and long kicking.