Cost benefit analysis. Dareus will f up again, it's not even unreasonable given the emotional trauma he's endured. I don't think football is his focus, and maybe it can't be given his history.
The front seven has been functioning well without him. If you can entice another team who is sold on his talent to bite, do it, Tim Murray like. Grab a first and draft a less emotionally fraught, less cannabis dependent DT. Dareus is self medicating and it has nothing to do with physical football pain, and it won't stop. No life coach or selected periodical pr blitz will prevent Puff Daddy's next episode.
Tyrod, has merit but is not worth 95 large. John Murphy has Bills fans repeating 'the Bills are built to run by design' canard, when it is really the Bills have no choice but to run as Tyrod is ill equipped to do what rookie qbs are already doing this year - that is, slinging the rock everywhere. I don't like the odds of the Bills riding the defense to Super Bowl glory. You're going to need to go bombs away more than once en route, and nothing I've seen give me the confidence to say the Bills are capable of doing that consistently, jv wrs notwithstanding.
Until you have the guy at qb, Sammy is irrelevant, so heal him and deal him. Get your 1st back and draft a qb. Or go balls out and try to get someone like Stafford (Marcel, Sammy, Gimore, whatever). In the Bills case, a playoff birth is only a symbolic if you have no legit chance to contend.
Nothing matters but the qb. Nothing.