It doesn't take a lot to be better than what we had performance wise on the field last year. That part is a no brainer. I personally think with a consistent pass rush, we dont' even need more sacks, jsut better consistency with pressure and a return to health for the guys we already have, they will take some very noticeable strides forward. I also think some tweaks with how we use some guys are going to be seen this year too.
But I think Sherman has seen his best years. He makes me extremely nervous, as I think he's benefited greatly from that entire defense and the ability to play on a defense that seems to get away with mugging receivers all over the field and rarely get called. It must be why they commit so many pre-snap penalties, so psychologically the refs have to keep flags in their pockets on other things to they don't have too large of a discrepancy at the end of the game between teams? It's a genius plan by carroll I guess, to whine about penalties and being called unfairly towards them when 90% of them are pre-snap and they get away with the rest because of it.
Like someone said earlier, toss in his off the field rants and struggles between himself and his own coaches, players etc, I don't see him being a multi year solution. i'd be ok with a 2nd or 3rd rounder for sure. No way i'm trading a 1st plus something else to take him on. I think he's overrated anyway and the second he starts getting officiated like the rest of the league he's a liability.