Generally, I believe you win with players not plays. With one or two exceptions, I have no problem with the scheme.
After about 5 years of top tier draft picks in the front seven, they are starting to come together well. I would not make major changes. I would like to see less "packaging". Put your best seven out there, see what they can do, and spell them when they need it. I wonder how often the defense is gassed more by running on and off the field than by playing in the trenches?
As for the secondary, I'll give birth to a cow if TT and both MMs come out of the next draft with more "ballhawk" DBs. For gosh sake, let's get some athletes in there and line them up! I'd rather see our guys get burned in man coverage than watch WRs waltz across the field in front those "ballhawk" safeties. Any of you guys remember Harris and Woodson on an island? By the way, neither was a Packer draft pick.