Thursday afternoon marked the opening of the NFL's official waiver season, when teams can formally release players and begin adjusting their salary cap structure. We've already discussed the Chicago Bears' now-official decision to release tight end Brandon Manumaleuna, and now we'll hit some other NFC North-related personnel moves in quick-hitting fashion.
Comment: Poppinga was coming off a serious knee injury. Harrell now qualifies as the biggest bust of general manager Ted Thompson's tenure. Drafted with a history of injuries, Harrell couldn't stay on the field for the Packers.
Comment: Williams was due $5.4 million in 2011, a high price for a player who might not have made the team. He was originally signed on the advice of now-coach Leslie Frazier, but a 2008 neck injury seemed to rob him of some aggressiveness as a tackler. I'm not sure if his replacement is on the roster yet, but Tyrell Johnson might get a chance.
Comment: Dizon was a vestige of Rod Marinelli's Tampa 2 defense and too small to fit into the Lions' current scheme.
Comment: They're too busy getting straight at tight end to worry about all that.