For all it's steadfastness and sticktoitiveness, the Packers defense presently has two glaring holes residing at the strong side linebacker and free safety positions. Brady Poppinga's struggles are not surprising, as he was weak in coverage last season as well, not to mention had never played in space until the Packers made him a linebacker after playing defensive end throughout college. However, Nick Collins play is alarming this far into his third season. At some point, he needs to "put-it-together" so to speak, or Thompson should be on the lookout for a replacement. Perhaps the answer is on the roster (Thompson did draft a safety in the third round this past April after all) but needless to say, Collins will be in a make-or-break stretch from Monday night until the end of the season.