Which players would go IF we go down?

This cropped up on another thread of mine. Would we really lose that many players back to the Premier League? I like to think we wouldn't lose any, but it would be difficult not to stand in the way of Caulker or Medel if the big clubs come in for them. Noone is a possibility, and also Marshall. Apart from that, I would be surprised if any others leave. Would this give us a strong enough squad to get back up again?