Could be a lot of factors.
The one I haven't yet seen mentioned is Fuller getting torched because of foot speed. Ithink I only saw that once, though, not as a theme in camp. Anyone else see that?
It could also just be to cover Kittle.
It could be because he understands the more complex aspects of this defense. Another coach on the field.
I don't put much weight on his grades as a Brown ... they're a mess.
Regardless, having Yeast/Lake/Taylor as sub package contributors rather than starters is a good thing.
We have a good deal of talent with Johnson and Ingle, but practice squad spots should suit them fine with how many injuries there are in any season.