I'd say it's not a good bet.
Sometimes these sort of picks just don't work out.
They don't work out because the decision is made for the wrong reasons.
Two of the most consistently effective ruckmen of the last 10 years, Mumford and Nic Nat, have "s**t" numbers.
The most important factors is physical application around the ball. Brad Ottens, Darren Jolly, Clarke Keating are more examples of low possession high impact players (particularly at the right time of year).
What are the odds that Clarke, who never displayed the physicality in the 100 games he did play, was playing dream football in the WAFL that would convert (given history, etc)? They are very low.
I doubt anyone we pay money to watched him play more than once.