Not much to say about this, though I am a bit surprised by the move, considering Darius Walker's performance last season. Walker looked reasonably good during the regular season action he got last year, but he hasn't even sniffed the field this season, thanks in large part to Ahman Green somehow staying healthy for more than thirty-seven (37) consecutive seconds thus far.
Best of luck to D. Walker, and I hope Ryan Moats' contributions are limited to practice reps and special teams.