Polamalu? Really? He is good and dynamic, but he only plays like 4 games a year.
In terms of starters:
We're set at QB, TE, DT, ILB, FS. Period
We're dang good at WR, RB, CB, OL, K, and SS (Burnett panning out)
We could use help mostly at OLB but defense in general.
Seeing as this is completely hypothetical, I'm going all out.
I'd go with OLB. I think Ware would be sick opposite of Matthews but so would Woodley, Joey Porter, or Mike Peterson from ATL. I think Willis is one of those players who would do well at OLB too. Anyone of those guys would be a good upgrade.
Because the LB in a 3-4 perform well because the DL sucks up blocks, I think that dropping Harrel for Darnell Dockett or Haolti Ngata. A front three of Pickett-Raji-(Dockett or Ngata) would be devastating. That might even be worth going for over OLB just because you would need to double team 2 of those three guys every time.
Revis is awesome, but his attitude just doesn't jive with Green Bay in my opinion. I think Cortland Finnegan or Daunta Robinson would be a better fit.
The list-
1. DeMarcus Ware
2. Dockett/Ngata
3. Finnegan
4. Willis
5. Kerry Rhodes or Adrian Wilson