When the Rams were deciding whether to sign Wagner they spoke with the defensive coaches about keeping both guys on the field for all 3 downs and apparently the coaches came back and said the worked through defensive schemes that would include both players on the field on 3rd down.
I doubt we see that defensive alignment in the preseason or either one of those guy on the field so we will have to weight and see how this plays out once the season starts. This will be a key area to pay attention to as these guys with both be involved in generating a pass rush on 3rd down. I would guess the offense will need to figure out which one is coming. Of course on a blliz the both may be turned loose.