Johnson or Bennett would be my guess. Assuming we don't switch to 3-4 and get cheaper run stuffers(move Babs to DE even) and spend our $$ on a NT.
The more I think about this, the more I think we are moving to a 3-4. I think Nolan prefers it, and I think Smith is giving more reign to Nolan in structuring the scheme and input in who we cut and who we sign or draft. I could be wrong. To me, BVG didn't really do anything but coach Smith's style of D. I think Nolan brought with him a different style, and seeing how that paid off, and the interest in him last season, they made an arrangemt to keep him by letting him more in the process.
It's my theory, anyway.