"Just" $67 million available. Keep in mind the new contracts for Jimmy G and Goodwin. It's more than enough for two top CBs, but I don't think they're going that route. They'll sign one, draft another and use their cap space to fix other needs, imho. The Raiders are also going after Trumaine, tho. If he signs there, I see no reason why the Niners wouldn't try to sign Sherman, other than fear of the player they're going to get back from his injury.