NFL players are overlooked for a variety of reasons.
It's possible that they're now employed in structures that don't make the most of their talents.
Possibly they are hidden somewhere in a map of depths.
Another possibility is that their instructors are blind to their talents because they are in someone's doghouse.
Alternatively, they may be on a team with more prominent members who tend to overlook their work.
There are moments when young players haven't quite gotten it all together