Wow, all the excuses for this guy. PFF grades don't mean squat to NFL coaches. Hill lacks 3 things that all good CBs need. He's got only average long speed for a boundary CB, he lacks the agility to stay with receivers, and most of all he lacks acceleration especially out of breaks. So WRs have 3 ways to get separation on Hill. He's probably the most overrated DB on the team.
Darious Williams has been starting boundary CB instead of Hill and he's only 5'9", and both Hill and Long are 5'11". Most of Long's issues last year were due to a young guy in his first starts. That said he played well overall with 2 PD on 10% of the D snaps. He's faster than Hill with better acceleration and agility than Troy.
For the level of play, they have been getting from Hill he's not cheap with a $4.4M cap hit. Why they aren't playing Burgess is very much like Wade was in ignoring young talent and preferring to go with lesser players simply because they are vets. That said Williams is too small to be playing boundary, his value is at SCB. Short boundary CBs have a long history of injury when played on the boundary. People laughed at me when the Chargers drafted Jason Verrett to play the boundary and I warned about this very same thing. He spent most of his career injured. Williams played 221 snaps at NCB last year and stayed healthy. He's played 130 in 2 games and he's out.
This is another reason I don't like Staley. He simply doesn't play to his player's strengths. Against Philly Staley has the best pass rusher in the NFL but he hobbles him by forcing him to read instead of attacking off the snap. The result, Wentz stays fairly clean all game and AD has one of his worst games. Didn't he watch Hill's film? It's obvious what his weaknesses are but he puts him at NCB? Burgess is a far better option at NCB with Long at boundary CB.
I've seen this defense that Staley is running and it really is only used situationally not as a base scheme. Why? Good teams rip it up, it concedes too much yardage and time on the clock. If you get behind it's really a loser scheme. Staley's scheme isn't new, what is new is he's the only one to use it as a base defense. When you look closely at it, the scheme is a variation of a prevent scheme. So now you understand why I dislike it? The Rams can't afford to get behind on the scoreboard because Staley's scheme won't allow them time to catch up.