Roach (concussion) was a limited participant in practice Wednesday. Roach's ability to practice, even on a limited basis, would seem to bode well for his chances of playing Sunday against New England, though he logged a full week of limited practice last week and still ended up sitting against the Texans. When asked if Roach has done more this week than last, coach Dennis Allen said, "He's steadily getting a little bit better every day, and so, again, it's kind of a wait and see deal and see how he responds on a daily basis."