I would try to resign Cobb, Bulaga, Guion, House, Bush. It would be nice if Peppers decided that he would like to finish his career as a Packer and restructure his contract to be more cap friendly with that in mind.
Cobb and Bulaga for sure. Guion probably; one year deals like that are "prove it" affairs; he's done what they asked so a new deal is the logical conclusion. I'd think House over Williams. Bush is probably a vet minimum guy at this point somewhat under $1 mil.
When looking at Cobb and Bulaga, those are the kinds of deals with decent signing bonuses with the cap hit back loaded. Guion won't cost that much as a no better than average NT; 3 mil per year, give or take. House won't cost much either as a promising but unproven player. All that, keeping Peppers, and swapping out Hawk and Jones for Willis could be fit under the cap with some room to spare.
The 2015 commitments including Peppers is currently $122 mil. The cap is expected to come in around $140 mil for 2015. With unused cap carryover, the Packers have about $25 mil in cap space for 2015 even with Peppers current deal:
http://overthecap.com/salary-cap-space/
Assume $5 mil held in reserve and $2 mil for rookies net of cuts. Swapping out Hawk and Jones for Willis would be a $1 mil net hit. That would leave $17 mil for Cobb, Bulaga, Guion and House. Through the "miracle" of signing bonus deferred cap hit, that's a tight squeeze, but nearly doable. A few million extra in cap would be very helpful...either out of the reserve, or releasing Crosby or Neal would pick up about $2.5 mil in cap over a rookie replacement.
The other alternative is getting rid of Hawk and Jones anyway and using the savings to fashion contracts that are more front loaded without a signing like Willis. But then we're back where we started...without an ILB and still with a leadership deficit...with fingers crossed that (1) there will be a decent ILB available in the draft and (2) that he'll actually play up to his potential in year 1, which is not a good assumption in light of the recent low first round picks.
Perhaps getting rid of Hawk and Jones and using only part of the savings on a vet ILB looking for work could provide an answer. For instance, Brandon Spikes is a FA once again. He's a run stuffer par excellence, a 1 or 2 down base player who would not cost much provided he does not re-sign with Buffalo. He sat on the bench a lot for them in the later stages of the season as they went to almost exclusively 6-in-the-box nickel as in the Packer game. Who knows what the jack*sses taking over in Buffalo will be doing; Brandon Spikes is likely the last thing on their minds.