One of those guys who was prevented from being good by an inexplicable lack of defensive instincts.
That's a fairly common problem, you see it today with guys like Jarren Duran. Makes you wonder what exactly goes into things like "defensive instincts" and reads and "first step"
It's not experience, really, because some guys like Varsho never play the OF and are just naturally elite at all that
It must just be something in the brain, at the lizard brain level, just a natural ability to perceive and react. Some brain computers work better than others.