Kindly point out where I said SF will be able to retain him or even made any mention whatsoever of the salary cap.
It's a pipe dream because there's no freaking way Ted would trade for him, and if he was a FA, he's not the kind of FA Ted has or will ever pursue.
Seriously, we go through this every year. Ted brings in old guys a with a few good years and leadership qualities or over-looked 2nd tier guys.
Well, you did make mention of "prying him" from SF. The point being, assessments about keeping or letting go can't be made without looking at the cap, and SF's situation is very strained.
Anyway, Ted brought in Julius Peppers with a cap number of $15.5 mil over the first 2 years with $8.5 mil in guaranteed money. Willis' cap number over the last 2 years of his contract will be about $17 mil with zero guarantees. I fail to see the philosophical distinction except perhaps that Willis would be the younger player and the better of the two deals.
The nature of Thompson's heart and mind as illuminated by the "In Ted We Trust" acolytes has proved to be quite interesting over the last few years.
As recently as 2011, the story was that Thompson drafts the best player available (despite evidence to the contrary). Then he proceeded to drop nearly the entire draft on defensive picks in 2012 ("I lost my mind", he told us, when we know he did not) and first rounders again in 2013 and 2014 for obvious defensive positions of need.
With that notion debunked, it was "Ted is a draft and develop guy; all this big time free agent talk is nonsense." Then he killed that story line with the Peppers signing.
The only remaining chip to fall is the "Ted would never trade a pick" assumption.
Will Ted make a play for Willis? Unlikely; it would probably stretch the cap to the limits and require dropping a couple second line players in the bargain. Should he explore it? Yes, it would be worth looking into. Will SF slash and burn elsewhere to keep him? Possibly. I see Willis is trying to talk Justin Smith out of retirement so he does not expect to be going anywhere. The SF Chronicle is not much help; they're consumed with the coaching shuffle.
The point being, the assumption that Ted's free agent explorations should and will be confined to washed up centers, 2-strike drug offenders and minimum salary D-Line vets should have gone under some reconsideration after the Peppers signing.
The Willis example should serve as an illustration, even if somewhat remote, of possibilities at the high end of the scale which should prod some thinking about guys somewhat lower on the scale. There's more to free agency than guys like Saturday, Liaina, Muir, Mulligan, Young, Wallace, Hargrove or even Guion on the one end of the scale and Suh, et. al. on the other.