Hit the post
I have your gold medal Zippy!
Willie Mitchell is an example of this. I *think* he put up a decent amount of points in minor league hockey. It was when he was drafted & got "transformed" in the New Jersey/Jacques Lemaire 'bore you to death' style that he developed strong defensive skills.Its still a pretty decent rule of thumb that if the prospect does not produce points at lower levels they have a really small chance of making it even as a bottom pairing / bottom 6 guy.
The players who beat those odds are the outliers.