We're really talking about Tillman, Briggs and Peppers, right? If so, have to agree that they'll very likely be replaced over the next 3 seasons.
Yep. I think at least one of the 3 is gone next year, possibly 2. I also think Garza will be gone as well, completing the O line remodeling (I think Slauson will take over short term, another guard will get drafted, and the center of the future will be drafted next year, unless one of the backups they are grooming ends up being impressive enough to mitigate drafting center).
They want to shed some more cash to have more cap room.
Greene is already being groomed to replace Briggs for when Briggs is gone or his performance dips (could he start next year?).
One thing - just vaguely curious about it.
For Greene - does he also fit in a 3-4 scheme?
Because I think once Pep, Briggs and Peanut are gone, there really will be no defensive holdovers that would pitch a royal fit over going to a 3-4. Not saying they will, but its always fun to play "what if?" when you have a DC who knows how to coach a 3-4 and already have a guy better suited to to be an OLB in a 3-4 in McClellin (not to mention, a 3-4 is more cap-friendly if you want to focus your cash on offense mostly).
Wouldn't shock me if one year they just up and traded up in round 1 and stole a nose tackle. No one would see it coming...