Not as many 9+ RAS guys in this draft. Not sure if that's a change of approach, or just the reality of this draft class.
Probably more of the latter. I know a few weeks back Andy Herman went thru and broke down the roster by RAS, I think something like 35 of the 53 had a RAS of 8+. They only had like 3 players under a 5 I think, so it's a pretty athletic roster.
I do think the lack of agility scores in a lot of the RAS scores this year might skew them higher but probably not more than 0.5.

I think Williams had 3 straight seasons with a PFF score of 75 or higher, so he's no slouch as a player. The thing that stands out with the LBs and S is they are all pretty aggressive, so I think this is a nod to what Hafley wants to run. Expect a few broken plays or instances of man coverage that turn into big plays, but with the tradeoff of more playmaking and less of a passive Barry-style defense.