I think they have to pick their poison with one of Bryant, Ramirez, or Chapman. If the lockout ends and the season starts almost immediately after with a shortened spring, Bryant will need to act fast and if the A's want to get the most bang for their buck on this sell off, they will too. I'm willing to bet one of the three won't cost an egregious overpay.
You're taking increased risks running with Biggio, Espinal, and Smith. If they miss the playoffs two years in a row because of dropped games in April and May, the media is going to eat them alive.