There's no perfect solution for replacing BG (with what is on the roster). I'm not crazy about the idea of sliding DT Milton Williams to DE, as he seems to be the DT that works best with DT Carter. My guess (absolutely no inside knowledge) is that Tarron Jackson is the player (from amongst Jalyx Hunt, Charles Harris, Ochaun Mathis, K.J. Henry, and Tarron Jackson) that sees the most snaps, at least against the Ravens.