To me this is not at all complicated. Foster has a much higher ceiling than Born, Henry, or any other player at UNI. The hope is his apparent disinterest at times is a byproduct of playing on a bad team. I would tend to agree if he can't show a little more aggression and drive than you see in most of his high school games he will have a hard time succeeding. But if he does have that in him he has the chance to be much more successful in college and beyond than guys like Born and Henry. How it plays out is anyone's guess.
Maybe I'm just paranoid, but I don't like the "disinterest" and "playing on bad teams" part