The Detroit Lions have signed 32-year old DT Chuck Darby.  Darby played in 6 games last season for the Seahawks and he made 12 tackles and had 1/2 a sack.  He has now played in 97 games in his NFL career and he has made 177 tackles, defensed 1 pass, has 12 sacks and he has forced 3 fumbles.  If the Lions think that Darby can replace Shaun Rogers they are nuts.