Where they were drafted is kind of irrelevant. Listed so far:They weren't drafted in the first round. And they're the exception to the rule, not the rule. So it leaves a bit of room for hope, but not much.
Manson, Middleton, Vlasic, Dillon (didnt produce beans offensively until his U20 year).
Some more that came to mind:
Lindgren, Carlo, Cernak, Edmundson
That's a lot of exceptions to the rule, making up a significant proportion of that "middle pair physical DFD" pool in the league