Jene makes some great points.... but he was a rookie. I think his big play production will improve, but I have a hard time thinking he can increase his tackles any. He was still pretty raw last year, so I think it's fair to expect him to improve at making reads, which hopefully enables him opportunities to make some INT's and start stripping ball carriers. He outperformed what most people's projections were for him last year. Some even thought he wouldn't start because he was so raw.
I think his overall scoring will go up a bit in 2007, but not because of his tackle numbers. I think they didn't ask a whole lot from him last year in terms of blitzing and going after the big play. I suspect they will turn him loose more often this year.