In looking over a list of the NFC LBs, I'm not sure about #5. After that I see two things--#1 is that there is a real lack of LB talent in the NFC and #2 maybe Tatupu belongs in the top 5 afterall due to the effects of #1.
At the moment, I would debate between Tatupu and Brooks being at #5. Brooks there because he's still good, but he's not his former self. Tatupu would be there more based on potential rather than last year. In fact, I feel that both of them had down years in 2006 compared to 2005. I thought Lofa was a better LB his rookie year and had a bit of a sophomore slump. Maybe that's just me though.