It is like this every year in free agency, former star players want the money based on past performances and teams want to low ball to save money. IF, a big if, Dallas is really talking with KJ Wright and supposedly Richard Sherman, it is probably talk for talk sake. Doubt if Dallas is going to pay anywhere near what they want and certainly at most a 2 year deal (with 2 voidable years added to spread the bonus money out) so if they do sign one or both it would be a shocker to me, nice shocker but shocker.
Now, could we use them, certainly. It would cover up some holes (or perceived by we fans as holes) in the defense. The other item on those two and any other free agents is that most teams are getting to the point where they will wait until after the draft to sign any other veterans to cover what they didn't cover in the draft. The other point we should not forget is that all these guys we are signing are one year deals meaning if we don't find a suitable replacement in the draft, we are going to go through the same thing next year. Not a pretty sight at all.