The lesson that we learn is that we give talls, especially ultra talls until 24yo to click.
Last year, as I recall, many dismissed Moran because he hadn't clicked.
Many were amazed that North, at the time, could use a first round draft pick on him.
For me, if you find a junior ruckman that ticks all the boxes of attributes & behaviours for being a top ruckman, go ahead, draft him with a first round pick.
Top class ruckmen, as we've seen, are as rare as hens' teeth.
And give him / them until 24yo to click.