Antaun Edwards will play and start at strong safety on Sunday vs. St. Louis, and I am assuming Marques Anderson will be coming in as the sixth defensive back. Edwards is better in coverage, which is needed against St. Louis, but I think Anderson has played better this season. Both of them are good players who have had bad moments this season, so I hope starting Edwards over Anderson is the better decision.
Rod Walker is probably going to start at defensive end, which is an odd decision. Walker has played well this season, and is the most deserving lineman to get the first chance to replace Joe Johnson. But Walker is truly a nose tackle, so the Packers are playing a true nose tackle at defensive end, which should make for one of the biggest defensive lines in the NFL. The defensive line played well against the run vs. Kansas City, when Walker played much of the game at end. The defensive line didn't get much pass rush, however, Kansas City has a strong offensive line so it might have just been a one game struggle and not a long term problem. It will be interesting to watch how the unit performs this Sunday.