I'm thinking with Hayward is that him being out is because they have faith with the guys they got in the secondary for him to heal completely.
I bet Hayward can play they just don't want him to linger. It's a tricky situation, but I think Tramon/Shields/House/Hyde are doing fine. They just need to finish games.
With Clay, I think he will be back this week. I would be fine if didn't practice the whole week and then play. It's not about practicing with a guy like him, it's about resting that hammy so he's good to go. I'm not worried.