How is it a lazy argument, do you think it is acceptable to have a player average less than 10 possessions a game.. It might be okay if in those 10 possessions he averaged 3+ goals but he averages LESS than 1 goal and i dont have the stats but i reckon it would be even less assists. So what exactly is his contribution to the team??
It's a lazy argument because you're using average disposals to establish the value of a key forward.
Disposals alone shouldn't be used to determine the value of any player, let alone a key forward who naturally gets less of the ball.
Of far greater significance is what he does with the ball.
I don't disagree with you that Levi is hugely disappointing but there are far more accurate ways to demonstrate that than by simply pointing to the average number of disposals he has per game.
Why you chose to add Daw to the comparison is baffling. Firstly .3 of a disposal is an immaterial amount, secondly they don't play the same role so a direct comparison between the two is completely irrelevant.