Nothing.
A d-line simply cannot dominate on its own. Anyone that saw
the Seahawks-Packers game on September 24 saw that the reason the Hawks got 8 sacks in the
first half was that the safeties and corners were in very tight coverage all
game long. Rodgers had to take extra looks and he paid for it.
Against
Tennessee, our d-backs were in some kind of loose, Rod-Marinelli-5 yard
cushion-defense. That might work if you can tackle, but as was evidenced by the
play of Coleman and Lacey, they can't. The same happened against SF in that final
drive where Smith kept throwing short underneath stuff to Crabtree (which is
what we wanted) and our DB's and LB's kept missing tackles (what we did not
want) allowing Crabtree to gets YAC's and first downs.
Basically you can rip on the d-line all you want, but any
good work they produce is completely dependent on what happens behind them. So
far what we have seen is that our d-backs are horrible in coverage and
tackling. That is a toxic combo for any defense, regardless of the quality of
the pass rush.